I appreciate everyone's input. Of course, if I bought a TTZ I would take it to someone to make sure it was done right. The one rj has for sale on this forum seems very legit, and I can afford it... after selling mine of course. Overall that would be the cheaper and easier option... to buy one already boosted.
Fast Intentions stage 2 Twin Turbo 370Z Nismo
I'll admit, I don't know enough right now to start my own build. When it comes down to it, I don't have the skills or tools needed to do any of the labor myself, which is why I'm considering a turnkey solution. I want lots more power with the least amount of effort (call me lazy), but it sounds like there's plenty of risk involved with inheriting someone else's build.