Need a truck

After some thought i was considering a diesel pusher but being that i drive concrete mixers and being a diesel mechanic plus i need to haul parts from washington state to Alaska i'm going with a semi tractor. What would be nice is to get an ex race car hauler with the workspace and bunks. Went shopping for a new truck a couple of months ago, not impressed with them, for well less than half the money or even a tenth i can get a suitable semi tractor from a Ritchie Brothers auction. Convert it into an rv hauler. Much more stable platform, better brakes, bigger engine.