I was looking on eBay for first gen stuff tonight, and came across this:

http://www.ebay.com/itm/Mazda-Rx-7-First-Generation-FB-Big-Brake-Kit-Rx2-Rx3-Rx4-Rx7-Rx8-12A-13B-20B-/262014059839?hash=item3d0141453f&vxp=mtr
For anyone who wanted a big brake kit and missed out on any of the previous supplies, this might be an option. Note that I have no affiliation with this seller.

 

That's a really good deal.

 

Yeah that really is. I wonder if he'd sell just the rear parts.... I might have to ask