You're right to be wary of RH as they are overpriced for the quality. I would look for an American-made company that does 8-way hand tied suspension (which is a good indicator for overall quality). I'm partial to Lee Industries and they have a lot of traditional styles. You can see their sofas here. They don't have that exact style, but a quick look came up with something similar, the 3903-03 Most manufacturers have traditional styles. Once you find one you like, use the retailer locator to find out where to purchase one. My shortlist of high quality, mid-range priced, American sofa manufacturers is: Lee Industries The MT Company Hancock and Moore Taylor King Stanford CR Laine (though I have read some reviews that their quality is suffering lately) Thayer Coggin

"might move in a year or two" + " current sofa is in such bad shape though it has holes" leads me to suggest finding less expensive fabric options. Possibly another sectional, maybe even two sofas to mimic the size you want. How much are you willing to spend for new seating that you do not plan to move?

I would definitely coordinate but not match. Pick a color from the existing rug to start your search!

To me, it looks like a chenille or velvet. Most upholstery fabric retailers carry both types. It looks like searching for a "caramel" color will give you the best results. Then, make sure the fabric has a "double rub" count of 15,000 or more. Here's info on that: https://www.btod.com/blog/2017/02/13/fabric-and-upholstery-double-rub-count-a-durability-standard/ Do be aware that both chenille and velvet "attract" dust, pet hair, etc. You'll be vacuuming your sofa constantly.