Talk about coincidence...
I was perusing through eBay and came across a bunch of yellow SA22 stuff.
I thought it was aftermarket painted.
Boy, was I surprised yellow was a stock color!
These guys are not cheap, but when do you ever get to see items like this for sale?
They are located in Japan, but the prices are shipping *included*.
If you're serious, I'd confirm if this still works for your neck of the woods...
http://www.ebay.com/itm/MAZDA-RX-7-M...item3372d6bccb
http://www.ebay.com/itm/MAZDA-RX-7-M...item3373180079
http://www.ebay.com/itm/MAZDA-RX-7-M...item4cff4eb357
http://www.ebay.com/itm/MAZDA-RX-7-M...item4ab5183fc5
-Ted