Bruce, congrats and welcome to the wonderful world of SMB owners. Our older rig is also non-propane. We do have a generator and often camp where shore power is available. For when we have shore power or don't mind running the generator briefly, we use a small, ceramic-element space heater for heat and a cheap, two-burner electric "buffet unit" for cooking. For situations where 110v just isn't to be had and we don't want to use the generator, we use this propane stove for cooking, both inside and out: http://www.rei.com/product/737001
. It uses the small, green Coleman bottles of propane, but we bought a five-pound propane bottle like this one: http://www.amazon.com/Manchester-Tank-E ... 752&sr=8-1
We got it at a nearby Home Depot and we connect it to the stove with an adapter hose like the one in the Amazon listing, from our local outdoor store. You'll find several threads about all this on the Forum. As to heat, some folks advocate one of the several catalytic propane heaters available and others advocate a gas- or diesel-powered furnace. Again, search the Forum and you'll find lots of info.
Best of luck... HAVE FUN!!