We are looking at the same thing, in the same time frame of about six years
Definitely will be headed south in the winters. I have been checking out Florida, Texas, New Mexico and Arizona. I want to check out each area before settling for a seasonal site. I know the key will be getting reservations out far in advance.
2013 Sabre 36QBOK
2008 Ford F350 King Ranch CC DRW 6.4l, 4.10 diff
Airlift system/on board compressor