Trackrig wrote:
I would.  If it's cold there, then rewinterize it and have the owner show you how to - it will be a good learning experience and test things in the process.  You'll learn where the hot water tank bypass is and if it has a hose on the water pump to suck RV anitfreeze directly from the bottle.
Bill
ESPECIALLY this^  My experience has been  that Thor (and some others) put their water pumps in some fairly inaccessible areas on the smaller RVs, and winterizing could be a lot more work than it *should* be?  So watch this process closely.  Since you live where temps can get quite cold, easy winterization is critical.