Maybe it's just me, but what are you asking? What part of the country to rewinterize, or where to take it to have it done for you?
It's a pretty easy job that almost anyone with a trailer would be happy to help you with if you don't know how. If you've got a water heater bypass, you can probably do it in 15 minutes with a couple of gallons of $4 RV antifreeze. The dealers will probably charge a hundred bucks, and Lord knows when they'll get to it.
'11 Eagle 320RLDS '02 Ford F350 DRW 7.3 PSD
"The world will not be destroyed by those who do evil, but by those who watch and do nothing" - Albert Einstein."