Hmmm, talking about mazda's on a 240z site. I feel very naughty, but anyway, they are cool cars also. I used to have a 808 coupe with a 1600 piston engine. R100's had the a 10A rotary engine, which I doubt you could find anywhere except in a stock R100, thats been lost in a shed or garage of some elderly person and forgotten about. Most R100's have the 12A or 13B put in for more reliability and power (13B turbo series 4 = lots of power to weight ratio). To fit a rotary to your car, you wuld have to change the cross member for a R100 cross member, then a rotatry would bolt in. As for tail lights, grills etc, they would be pretty rare also, even in Australia, because ist such an early model car. Bits for RX-3, and 4's are a lot more common, and even aftermarket reproductions are available for RX3 nose cones.