Rockwood & Flagstaff

Thanks for all your post. Yes, we will want theater seating.

I can not really comment on the specific model 5th wheel that you listed but can tell you that we have had our Flagstafff 528RKS for 3 years now and it has been very trouble-free. It tows well and seems to be sturdy built. Ours is a 2019 that we purchased new 3 seasons ago.

Take a look at the Keystone Cougar 25RES. Fits all your numbers and from experience (we have the 27SGS) very nice trailers.

No access to the pantry or fridge when the slides in and not sure but it looks like no access to the kitchen when the slides in as well. Not a fan of the dinning table. The one sitting next to the wall would feel cramped and getting in and out might be a hassle when another persons sitting next to them. Could always sit at the end of the table I suppose. Hardly any windows on the camp side would be a downer for us.
Other than my own subjective opinions I like Flagstaffs and Rockwoods for their Azdel and laminated roof construction. They're a little lite on other things like suspension and insulation but overall better than many out their.

Looks like a nice couples floor plan, and at 8k dry and 10k wet the towing would depend on the tow vehicle used.
I would opt for theatre seating instead of a couch unless another bed required.