Ok, here goes, I think I can answer these.......
1) You get everything NECESSARY for the swap as far as engine transmission harness ECU MAF etc. You WILL need other stuff like guages, belts, fluids, etc.
2) Yes, it comes with ECU and wiring harness
3) I comes with all the plumbing for a STOCK side mount intercooler. Note that a a FMIC (front-mount-intercooler for the new guys) is drastically better but can run you another grand all said and done.
4) It comes with a tranny. Side note, you will want to buy a better clutch while it's all sitting on the floor
.
5) No it isn't, turbo cars are cheap to upgrade. Intake/Exhuast, SR turbo and manifold, and a boost controller (10 PSI) should get you in the mid 200's add a FMIC and you can go much higher.
6) BUY IT FROM DAUNTTLESS when he is up and running in a month or so. Reputability is so important.........