Replacing my CDI

[Craig806]

I think my CDI is bad (pending a few more tests) and I would like to replace it. I have a 1991 Bandit GSF400M

This Chinese one on Ebay looks tempting and is the right price:
http://www.ebay.com/itm/270841817489?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
…but The numbers don’t match.

Does anyone know if this matters? Will it work? Or should I stop being cheap and pay more? I would hate to spend 2x as much for nothing.

MINE
32900-10D00
BB7217

EBAY Listing #1
32900-10D30
BB7243

This Ebay Listing requests your specific model # so it will be a perfect match but costs 2x as much

http://www.ebay.com/itm/Derestrict-CDI-SUZUKI-BANDIT400-GK75A-Ignitor-Ignition-/280692060931?pt=LH_DefaultDomain_100&vxp=mtr&hash=item415a8cf303

I remember reading somewhere in this forum there is a service that I can mail my CDI to and they will re-condition it and mail it back. If they still exist can someone point me in the right direction.