Hi wedooit,
We have a Landmark, not a Cyclone. But I can tell you that staying warm in sub-freezing, even sub-zero temps is pretty easy. You just need a couple of ceramic disc heaters. Having a couple of dedicated outlets installed, on their own circuit breakers, is a good idea. Small differences in R values won't make that much difference. Supplemental heat will.
The real challenge isn't staying warm. It's keeping the water systems working. A heated underbelly works to a point, if the furnace runs enough. But once you get down below 20 F, you need more. The Yeti option provides tank heating pads and heat tape on the fresh water feed line. That will get you a long way. We also have an owner-written
Water Systems Winter Usage Guide that will walk you through additional things you'll want to consider.