Looking for a welder in Pleasanton, CA (selection help and battling being cheap too)

I don't know anything about welding, but I need to cut my transmission tunnel and patch it, I need to cut my front fenders and weld it back together, and I'm probably going to want to weld or unweld junk off my truck frame. And I have a mustang with rust, that I don't want to have rust so thats going to be cutting and welding as well.

What do I need? Also, I have limited space, no mask, no wire, no nada.

http://sfbay.craigslist.org/pen/tls/3687528152.html ?

http://sfbay.craigslist.org/eby/tls/3687133169.html (more my price range, lol)

http://sfbay.craigslist.org/pen/tls/3655410356.html (maybe?)

probably about 50 more welders to be found on craigslist, ..... so overwhelmed. TIG? MIG?