As for using stuff off of your 2gnt for your 4g63, you can use the turbo if you wish to purchase a new exhaust mani, you can use the Wally 255 but you will need an aftermarket AFPR and preferably a rewire kit, and the FMIC you can use but the IC piping will be different so you will need to purchase that if you wish to use your existing FMIC... Now on to swap mods, the 1st gen 6bolt turbo cams are a pretty hefty upgrade for the 2g 7bolt, also the 60mm stock turbo TB is an upgrade over the 7bolt 55mm, and the 16g turbo on the 1g 6bolt is a pretty decent upgrade over the dinky t25 that comes stock on the 2g's, and the 1g bypass valve/BOV holds up so much better than that plastic POS that comes on the 2g... I have all of those things, minus the BOV, in pretty fair shape, and a BIG16g turbo, that is a good step up from the stock 1g turbo, that needs to be rebuilt, if you would be interested, just PM me. Everything is a direct swap and requires no tuning... Though a SAFC wouldnt be a bad thing to have to be able to tweek alittle to get it solid!