That's not true at all - many board shops use amazon as an online marketplace to advertise.
I'd recommend checking out THIS GUIDE, which is linked in the sidebar, and finding a deck that looks good to you. Once you've got a few options, use Amazon Search to see if they're online.
In your case, I'd recommend just buying 'completes' - because that way, all of the gear will be coming from a single location.
Disclaimer: I've never bought something from Amazon, but this seemed pretty effective before!