I think a TT is a good idea as your house and ride to work wont be connected like a motorhome. RV's are best suited to move with the weather but there are ways to use them in the winter..
The number one issue when buying an RV is water damage. You need to look at every inch of that TT. Get on top and feel for soft wood under the membrane. Look and feel in all the closets and cabinets. Various leaks can result in water running through the walls and into the floor. Do not rely on the salesperson. Do not buy into trusting the guy. They may be the greatest people you have ever met but it is totally on you to be sure you dont get ripped.
Don't worry about the appliances so much as they are all easy compared to water damage. See that all the appliance work of course but the big thing is water.
I was in the Denver area last November when they had unusually cold weather. It dropped to 9 degees or so on a few nights. I was burning 30 pounds of propane some days and always 15. 30 pounds was $26.00 !!!! The only time the furnace stopped was on the days that there was decent sun on the FW. I also had an electric heater going a lot of the time.I never connected to city water, just used the fresh fill so there were no frozen noses or heat tape. I boxed in the holding tank area and used an electric heater on the coldest nights.
You have to be ready to dump and winterize if the heat goes out. Running something like a buddy wont get it.
Being single would let you go to the next level when dealing with winter. You could keep it dry and deal with your needs without having the water on or filling the tanks. People who camp/live in vans pretty much do it that way year round. Bucket toilets, 5 gal jug of water etc.
The weather extremes are what will drive the cost up the most. If you could never turn the ac or furnace on those would be your 2 biggest savings.
If you take care of the exterior it will last a long time. If you guess that it would last 10 years and you junked it you would have your cost per month. To me it would be very good to not get an apartment. If you go solar and can boondock some of the time you could save on rent. Even a month here and there is another $350 to put on the rv that month.
There is always something to do or buy for an RV so expect that. If you do it be absolutely sure it has no water damage then make sure you keep it sealed up or your house part of the deal is going to burn you hard. Good luck to you
