Hi brutherb
Looking forward to pic's of your project. Sounds like you will have a cool RV when done.
Getting a turbo under the doghouse in a van will be a pain.Some people have remote mounted turbos to deal with lack of space.
I am assuming it has the van front end on the RV.I would look for a 2000 GM van that may have come stock with a turbo,or the Hummer turbo which mounts in the rear.
Thomas
90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews