Change tires after 5 years no matter what.
Do buy the best stabilizing hitch you can afford.
Buy a good black water hose, Have a cheap blue one just in case.
I tried the electric drill idea...Princes auto ones SUCK.
I swapped out my small 20# propane tanks for 30# from Costco can never have to much fuel.
If you can't light a fire with one match..you need to learn....