Hi John,
I use the MC21 brackets on my 28 as they are separate from the foot peg mounts so look cleaner etc. A minor tweak and they fit just fine and look good. I paid $20 for my set.
I'll keep a look out for a set of either for you.
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Stop sniffing my ring
MC28SP
KLX110 hotrod
CAG Minimoto
1997 WRX
21 Speed Bike
162 Smurfs