Pop-up with built in generator

Of course, I don't know how bad your back is, but if you are planning on using it to charge batteries, etc, the 1000w ones from Honda etc are only about 30 lbs.

Or better yet , Outfitter has a slide out on the gen compartment for the honda 2000 that I belive can run in place

....there is an Outfitter Apex pop-up owner on this Forum (I think it is Dadwolf2) with a built-in Onan 4000 Microquiet gas generator...you may want to reach out to him?

I've never seen one. I would look at Northstar. They make excellent campers and seem willing to customize.