I see mostly a broken power switch. Best Electronics has a new one, and most likely anything else you need. Use the evil Goo to search Atari Best Electronics and you will find them.
The Web page is a mess, that'sounds a known fact. Brad Koda (the owner) is a great guy. I have met him personally. One thing to remember is that Brad is a busy man and he can get annoyed by repeated stupid questions and such.