89' RS125 Parts- not available... help??

I tried to get pricing on a radiator, front rotor and front fender for an '89 RS 125 (from Thousand Oaks) they told me that those parts were unavaible- that the older bikes are getting harder to get parts for... if anybody knows where I can find these, or how to find out if I can use a newer years parts, or a good used (but still in good shape) place, please let me know!
Thanks!
-Sheri

 

You should be able to get a rad made or re-cored quite cheap(ish) as it is flat, not curved like the new ones. Is the front disc the same as the latest on? I use the fromt wheel from my old 94 in my 96 without any problems. If you get really desperate, check out

http://www.sp125racing.pwp.blueyonder.co.uk/1988-1994usedpartsAPRIL02.htm