Welcome to the forum Shad!
I agree that a tune-up is called for - spark plugs, oil change, atf drain and refill (don't power flush), and a radiator flush. Definitely replace the battery and all four brake rotors & pads.
The window is a bit trickier, but the How-to docs should have an article on removing the door. Once you take it apart, if the glass is still on the 'arm' that moves it up and down and everything seems to be in order, then it's most likely a blown power window motor. They aren't too hard to change and are sold on Ebay every so often by people parting out SVXs.
Good luck with the repairs.
-Chike