Well since I am finding out what its like to be at home alone I need a project. I have a 79 K30 std cab long box. My plan has been to put a crew cab on it with either a cut down box or flat bed. I have looked before but how hard is just the cab swap? I plan on going propane only and will use a 80 gal tank. I am thinking simple flat bed till I have time to cut down the box.