Just about any Class C is a van-cutaway chassis, with engine buried underneath dash area, so practically all work is done from underneath or inside from what little bit of engine cover there is.
If it were me, I'd go find an 80's - 90's Class A instead. With the Class C, the front seating area is useless when camping. Class A, you can always turn front seats around and use them for extra seating, if needed.
There's LOTS of older Class A's out there, GMC's are NEAT! Of course, Airstream's are a great choice too, lol.
Try rvt.com, campingworld.com as well as the craigslist search engine searchtempest.com to get started.
Good Luck, Derek