well youd need complete engine (engine manifolds turbo exhaust intercoolerect) ecu, loom, back axel (you do need this as with more power you need more stopping power) your gearbox will fit but turbo box has shorter ratios and a better clutch thats all i can think of off the top of my head
yeah thats wht im saying matey theres a vault of information on this forum, u will find just about everything you need to know using the search button. it makes it easier because the information is there and you dont have to wait on people posting
look at jays garage he has done two of them and both came out great!
its easy to say just buy a v but if you,ve done alot to your N/A and dont want to sell it a 4efte swap would be well worth it!