Giggles, you may want to look at this site.
Father of 11 girls
But whatever you do, if the Shuttle or Schoolie has a Ford Diesel engine......absolutely avoid the 6.0 Liter power stroke engine. The 7.3 Liter power stroke is the best most dependable engine. Ford introduced the 7.4 in 1994 and quit offering it in 2004
If you find one with a gasoline engine from Ford it may be a 351 or a 460...both good motors.
GM offered a Duramax 6.6 Diesel V8 if you find one of them in a Shuttle or Schoolie you may be in luck.
Otherwise their 350 gasoline V8 is good.
A lot of people who convert Schoolie's or Shuttles find a solution for their kitchen in a King-stove Kitchenette. (stove-oven/sink/fridge counter top)
as an all in one. These have been around for years and can be picked up in working order reasonably.
But they came in all shapes, colors, sizes, and prices.
You may need a larger generator onboard your rig to use one of these outfits. Or if the engine has a large
alternator capable powering it while you drive.