So the rear end does have some frame sag (both sides even), see the usual skin bulge over tires. It's a 26 footer, 1967
. The rear end is currently separated and my husband wants to do the new subfloor and fix for that as we've researched a bunch and want it done right. We will get new axles too before it starts being used. There is frame rust but not bad structural rot (but will have welder inspect and address). But I'm not sure whether to look at the frame strengtheners. Also, on the one side only (pictured) there is an actual bend in the frame. Looks big but not noticeable in terms of tire wear, etc. My concern is that if we have someone fix the bend they might mess up the all-important quarter panels which are perfect. I wanted to get advice and learn before we proceed with having someone repair.
The subfloor in the rear bath area will be entirely removed and we CAN remove up subfloor up to tires too but it's not rotted there so trying to figure out how much we will need to remove.
Thanks in advance