Also the flooring only goes to the existing cabinets.  So I have to keep that space filled somehow

Is the fireplace real? It does not look like it but sometimes it is hard to tell. IF NOT I would personally rip it all out and get back to the wall studs to create the desired look. Remove the ceiling beams as well if decorative. Find some of your flooring and finish it off. Do it once and do it to the way you would like it to be.

It looks like a box with a flue to me, like what I had installed in my previous home. It could burn wood. It could probably all be ripped out by a professional and may be worth it if there is no floor above. The roof would be affected and you might need a permit.

As far as filling up the space goes (if you decide not to tear out the fireplace), you could build in a low bench on each side that feels a little like a hearth, maybe using the slab materials, and add cushions, pillows, decor and art behind it. I’m sure there are a lot of other options. Look for inspiration pics online.

If you are modifying the fireplace box or moving the mantel or changing the side dimensions or materials, be aware of fireplace code restrictions. I found the manual for my box online - I think the manufacturer was ”majestic”. There are also general fireplace code restrictions online.

I had a nice glass door set installed over my fireplace box. It was recommended at the time. I don’t know if that is something you need, but you mentioned a metal frame. Again, if you are modifying the box, you need to be aware of why it was manufactured the way it was, and what mods are acceptable for safety.

If you really hate the box, consider getting a new fireplace box, if you can find something you like better. You might be able to find a way to free up all that floor space if you could use the extra space.

Your inspiration pictures have high ceilings and long/narrow gas fireplaces, so managing expectations is important.

I’m not a fan of a TV/marble combination, especially if adding a metal frame. Wondering if TV can go elsewhere and also keep firebox surround simple.

Consider a simple stone and you can paint your cabinets and remove the glass shelving.

Another idea is to add a wide base across the length of wall in order to hide the flooring. Room below has high ceilings, so would feel different.

Really consider all the components involved and that they suit your room. Think big picture first.

A couple of ideas for some custom-made WOW-factor specifically for your space...

See more at tableaux.com/lookbook

If it were me, I would remove the glass shelves & all those small-scale accessories and spend all my money on two pieces of incredible art

If I remove everything and start fresh and build out more contemporary fire place. What do you think I should do with the two doors?    I have so many door in the kitchen/ living room.

Something like this?

Maybe with a shallower fireplace box if you find one you like. Or if you have the space, you could use your existing box.

I would look at ways to reclaim that space somehow, unless you don’t need it or want the deeper fireplace.

The doors can be reused somewhere else (maybe a mud room or playroom), or just store them flat. You might want the painted wood for a project or repair. You would lose the cabinet storage by the fireplace. You could add cabinet storage somewhere else.

That white shaker door style is very versatile. You don’t have to change all your cabinet doors.

Can you post a picture taken from straight in front of the fireplace. I may be able to create some mockups for you, but I cannot do it easily with pictures taken from the side.

Try taking a picture like this where the fireplace can be seen floor to ceiling as square as possible with the cabinets in the view.

To get ideas on what to do with the doors you need to post a floorplan so we can see if possible to get rid of them or move them.

Maybe this will help as an inspiration: This shows the upper portion of the fireplace floated out to the same level as the lower portion with a split marble slab that wraps around to the shelves. Matching marble on the cabinet tops.

Paint the inside of the fireplace black and add a glass door to the fireplace opening.

You could also put the marble on the walls behind the shelves, but that was too much work for me to mockup.

Thank you sooo much!!! You did a great job what program did you use. I might inset a 65 inch tv on top and add a harth at the bottom possibly. Thoughts?

I use Corel Photopaint, but I've been doing this for about 20 years and it's second nature. Huge learning curve, so I would not suggest going out and buying it ($500+). Even with my experience using this software, it took about 2 hours to produce these two mockups. I do this because our company Hansen Wholesale sells high end unique custom made fireplace screens and doors, like the one I featured in your mockups. Hopefully you will consider us for that part of your project.

Here's an inset TV and hearth: