Post a pic of the whole space showing both china hutches. IM just remove what you don't want but I need to see all of this witout all the clutter too. Poat here in comments DO NOT start another post.

Per what Patricia Colwell said - remove the clutter and any pieces of furniture that you don't plan on using. Then post more photos of the space. It looks like you will wind up with essentially a blank canvas. Would suggest that you begin collecting photos for inspiration. Would also suggest that you think about all the functions this room will have. Will it be for dining only or will it also be used as a workspace for crafts, childrens homework, etc.

It's not clear to me whether you want to remove the china hutches and replace them, or leave the space empty. If you want to replace them, use the kitchen cabinets you're installing as the jumping off point. Not that I'm suggesting you put more kitchen cabinets in your dining room, but you could have the same style in a different color. Are you taking down the wall between the kitchen and dining room? I assume the clutter is in the dining room because of the kitchen remodel. We still need more pictures (include the kitchen) and a better idea of what you're trying to achieve. If you want new cabinets in the dining room it will be best to order them at the same time as the kitchen cabinets as some vendors have minimum order quantity requirements. If you don't need to order new cabinets, wait until the kitchen is done before thinking too much about the dining room. You can start compiling an Ideabook in Houzz of pictures of dining rooms you like. You're going to need a new light fixture. :-)

Is she talking about built in China cabinets on either side of the window and a bench under the window?
That could look nice.

Yes I want to buy kitchen cabinets and make custom cabinets on side of the window. Yes I need a new light fixture. Up for ideas

Our kitchen is currently under construction that’s why there is such a mess

Please show more pics of the dining room. It might be best to have a buffet on the wall rather than built in china hutches - right at the window.

Sounds like you want to use kitchen cabinets instead of your hutches. Do you want them on both sides of the window? Do you want them to have uppers and lowers with counter space or have them take up the entire height floor to ceiling?

Do you need buffet or serving space in here? Do you use this space for any other purposes? Any need for a window seat between the new cabinets? Any need to run an entire back of cabinets and countertop along this wall with uppers or no uppers for a ton of serving space?

Can you show pics of the whole room and how it leads to the kitchen?

Sure I’ll add pics

The door leads to kitchen.

I want to do away with this big hutch and the small ones beside window now. Not looking for countertop

This is one of the hutches I want to replace

What are the dimensions of the dining room and your dining table?

Do you plan to use chairs at each end of the table?

Are you planning to add a built-in bench under the window for dining table seating? The window height is probably not right for it.

I don’t want to add a seat. I think I’d like built in cabinets in each side. My dining room opens to the living room so I can extend table if needed into living room area. My dining room is 12 ft long by 10 ft wide. My dining table is 40 inches wide and 58 inches long

I’d like to put a chair on each end

Ok. I’ll wait until I have the kitchen done before proceeding with the dining room. There is such a mess right now. It’s hard to visualize anything

What do you think of these two choices in place of where big hutch is now

Do you need the top piece? IMO artwork on top would look nice.

What do you think of these two choices in place of where big hutch is now

Yes it would. I have lots of walls in this room. It’s connected to the living room

Instead of placing your built-in along the wall narrowing the room how about placing your built-in around the window with a roman shade on the window and decor on the buffet section, something like this...

What type of material should I use for countertop ? I kind of like the wood look