Mhm. I just bought one part a week. The most expensive part on my first setup was the drag manifold. I switched to a brand new garrett turbo after my skyline turbo shit the bed because of the ceramic fins on the wheels.

I get all my flanges and shit from kteller.com and all my piping kits from store.racing-solutions.org. For used injectors, manifolds, turbos, etc. ebay will be your best friend.