Provided everything is in good condition, you are getting alot of stuff in that auction and the price is excellent, everything you need pretty much.
If I was going to turbo my stock normally aspirated L28, I would use eveything in that auction, plus a very efficient intercooler, a larger fuel pump and a rising rate fuel press. regulator. Plus I would only run 5psi of boost with stock injectors and stock compression, which would still be plenty fast. Controlling detonation and Exhaust Gas Temps is the golden key to longevity!
Lots of info on this site, so grab a coffee or beer and a few hours and do some reasearch - you will be plenty glad.
Never heard of Z Performance Racing before, but that 280Z in their YouTube video was VERY impressive.
Yasin