First time potential buyer of a TT- need advice

I go with the advice to buy used. If you want to go a little more cautious, try a used unit from a trustworthy dealer. You will pay a little more, but they often offer a short warranty and usually can offer financing. Find a unit with the layout you seem to like, and if the whole thing turns out wrong, you won't be out too much cash. Your generator will run everything except the air conditioner - if you want to run that, you will need a second 2000 and a hook up kit .....