I gotta say, 5 weeks is hard to buy if you have all the necessities--like fresh insulation, hot and cold running water, fresh/grey/black tanks, propane, range, heat, a frig, some solar with a house battery pack and a nice inverter generator.
If on the other hand you have built an "Ikea meets Mr. Bus" then I can see 5 weeks as being doable and that's OK if that's what you desire. Fill us in on the whole backstory we'd all love to get a leg up on how to do a conversion that fast.
Jack