If you plan to buy a motorhome of any class you should be a mechanic, plumber, electrician, and overall handyman. Don't buy if you don't have a complete set of tools and know how to use them, as you will spend a fortune hiring someone else every time there's a problem.
Don't be cheap on maintenance, either, and keep records of oil changes, etc. Check tires pressures every time you go anywhere, this is huge for safety!
My Dad bought a new Winnebago in 1976 and eventually knew the mechanic at the dealership on a first name basis. He could afford it, but I dread the thought of spending that much money.
I am in the process of replacing the carpet in my Class A. So far it turned out quite well, I bought a pair of carpet shears before starting. Patience and precision is the key with carpet. Change razor blades after every second cut for best results.