Z-car or RX-7

["Adamson, Ken" <KADAMSON@lifeline.net>]

I'm looking into getting a decently maintained early model 240-280Z or a 
1st-2nd Gen RX-7 to convert into a daily driven autocross vehicle (CSP/BSP).  
What I need to know is this:  Are there any real disadvantages, when it comes 
to maintenance or parts availability, to one or the other of these cars?  Is 
ther anything specific I need to look for regarding maintenance history or 
trouble-prone models?  What can I expect to pay for one of these cars in a 
decent state of repair?  By decent, I mean - it runs, good engine - the body is 
almost irrelevant, as long as the doors close and all the seals, etc. don't 
leak.  Rust holes can be fixed...

Thanks,

Ken