there are many creative ways to swag a light fixture.

google DIY swag light fixture.

https://www.youtube.com/watch?v=iQg_WkqJUyI

There you have what you need for your husband to comprehend a pretty standard application. As owners and furniture changes in a room over time often electric boxes are not quite where one wants them.

It's called a swag

It is pretty simple to do.

As far as missing pieces? See if there is a lamp repair shop anywhere near you or look online or maybe a craft store?

Wow. Cool photoshop ability!!

I calculate that the diameter should be 18 inches. The one I have is 16 1/2.
The window space is an additional alcove that adds about 3 feet in center of length (but doesn't change the width obviously)
Is 1.5 " worth a new chandelier?
I do know it's personal preference but I'd love to know.

Where exactly in the hook up in relation to the table Draw the table top and show exactly where thta electrical falls in a line on thetable . Maybe look at linear light it is hard to tell excatly how far off the center of the table that electrical is .Is it possible tolayout the room differently sometimes it just takes some reorganizing the space to make it work Of course you can swag any thing but IMO it looks always like an oops

IMO the formula is the VERY MINIMAL SIZE. The window bay adds to the space.

I always select them larger than the formula.

Are you really going to illuminate a dining room with three candelabra bulbs? Of course you can up the lumens, but it will only increase the glare coming off the pendant in the room.

This would look great in an entry!

Thank you, Beverly.
I was thinking a chandelier would be more for a more soft ambient glow. ?
I'm really impressed with your photo imaging ability there.
We have overhead recessed if we need more light and we have two lamp light sources in the room as well.

I also have this a 16 inch It wouldn't provide much Light either. I'd love to see how that might image. this photo is another consideration and also shows the table pulled out. I don't really think the center of the table is close enough without a swag.