Good luck. Really, I posted the same wanted add on just about every BBS around- what I've found is that people seem to keep their scales until they need to be replaced- then they sell them (and will tell you they are not 100%). Truth is you can buy a new set of good scales for under $900. Kodiac sells a scale and platform combo for $1600+/-, "MB" (or something like that) has the combo for $2100.
Most of the "deals" I found were $500+/- for a old set of $1,000 scales that were "not 100%". Why bother? Just get a new set!
1996 RF96 FC
1996 RF96 FB
2004 Mygale SJ04 Zetec