Alright, does anyone know where I can get some alder(body), and maple(for a neck)?
You might want to check out A and M woods. Or a local lumberyard maybe.
A local wood store will have everything you need. I found Warmoth to be a little pricey when it comes to buying anything. But i have seen some of there work and it looks good.
I get everything locally, it's usually cheapest.
Rona, Home Depott, etc. don't have wood thick enough though...
No, like local lumberyards- if you need help, walk into your local home depot and ask where they might have some more exotic hardwoods, they'll usually know. Ask the guys back in the lumber section.