I couldn't fit my a/c with intercooler, and the compressor clutch gave out, so I pulled the A/c. I got the refrigerant pulled at a local garage for $50 or so.
Wuzie, you need to come over and have a rip in my E30. You'll realize that a turbo M20 is plenty fun. I have some parts you might be interested in as well, ie turbo manifold.
Edit: 170-180 psi is great, btw.