Do it yourself..
I changed my brothers turbo, dump, front and exhaust on his S15 in one weekend only hard part was the damn oil lines... And it was the first time I had even looked at the SR engine.
Hardest part with alot of them would be trying to get some of the bolts off after 10yrs or so. I have a semi decent tool collection if your ever in need of anything.
Hornsby is kinda far away but if its for a good cause im sure i can make the trek, Doubt you will need it but..
Then after all the work is done, go to a titty bar