Looking for 1st gen performance parts

I'm slowly converting a 1984 RX7 GSL SE from street to track. First on the agenda is the suspension. I'm looking for springs and shocks, possibly Tokico 5 ways, Koni's, etc. Next will be engine mods. I'm up for suggestions as to what to do and the location of decent used parts such as turbos, intercooler, supercharger, etc. I'm an experienced track driver and have taken this one to the track for the first time recently. I ran Hawk Blues, a Racing Beat exhaust--header, presilencer, cat back, and K&N drop in.

I'm also in the market for seats and a cage or roll bar.

my friend purchased some mazda parts at innerauto.com. you can check the site, might find what you need.