[Motor31]

I would recommend an Arctic Fox product for what you intend to do. They believe in good insulation and interior seals of the slides unlike any DRV product. They also do not cut relief slots in the only seal under the main slide creating flow through ventilation like DRV does. DRV slides are also not insulated in the floor or ceiling areas.

The Arctic Fox also sets their units a bit higher on the suspension, better for rough roads than does DRV.

I also would recommend you look for heat pump equipped units if possible. It will save propane in the milder cold temperatures.

If you are looking for an "upper end" full time unit then New Horizons or Travel Supreme would be your best bet in a used unit.