yeh turbo is good and cheap, but does it have a t3 flange on it? if it doesnt means you need to make a mod plate or get a new manifold, either way spells money.
and in regards to a tuner, see ray at RE Customs. he doing my safc2 an d tune for 200.im in the same boat as you. im saving for the microtech and turbo but when i got given the safc2 for nothing couldnt resist.
i also am an apprentice, so know what it feels like. get the emanage then and take it from there.