Great thread Derek!
Well, lets assume that we are talking about a $5+M windfall...
For starters, we would buy a ranch or land somewhere close with some acreage...
The Home would be modded or built.. gotta keep my wonderful woman in the style she deserves!
Then "The Workshop" would be built. I am talking LARGE, and very well equipped.
Skilled Labor would be hired, and the current Airstream would be gutted, repaired, and upgraded where needed...
During this phase, there would be further Classic's added.
This is my list.
1/ A shorty... maybe a 324... for going places you cant get with longer rigs, and also to loan out and travel with family.
2/ A 1990's 360 Diesel pusher.
3/ The rare and ultimate 370. Gotta have one of those!
4/ A Large AS trailer... maybe that triple axle one with the toybox in the back, I think.
5/ A smaller AS trailer to tow behind for other occasions.
All of the above would have subtle mods and upgrades like Diesel drivetrains, and solar...
I bet my RV wish list would be far less than buying a new or pre-owned Prevost....