I have found them to be very stingy with the drawings. I asked a few times early on if they would just send me the set of everything pertaining to my vin. They would not.
I have on several occasions asked for something specific that I was working on, and would get just that one sheet or collection of sheets.
So I figure if you are specific in which sheets you want you'll have better luck.
I just wish they would send the whole shebang.
at one point I even suggested to someone at Thor that they should link everything up to the owner's info page
https://thormotorcoach.com/owner-resources/
as it is there's not much there that's usefull. I find the old year specific brochure interesting, but that's about it.