Stew Mac is a great place for supplies, but you might want to check out http://store.guitarfetish.com/ to get some good prices.

Also try eBay for parts.

For building advice & tutorials, try http://www.projectguitar.com/
That site and the forums there have been a great resource for me. I advise you do as much research as you can before posting on the forums.

You can pretty much Google and YouTube almost any info you need. Doesn't sound like you need a whole lot to get that geet up and running. Good luck!