revrunt,
just curious. i have read several posts over the last few years were a tranny 'goes out'. when this happens,,,,(in your case),,,can you get it at all , to go into any gear? I assume it is a situation were it sounds like the tranny is in two gears at one time?,,,,

4:
sounds like you are still happy as a clam,,with this bike. if that is the case, you may find some young guy locally that will tie into any bike,and he would be willing to rebuild the trans for you? if you was lucky enough to find a tech like this,you may have a good rebuild for a reasonable repair bill.
there are a couple young bike wrenches close to were i live here,that i know would rebuild it,,the trans ,,and their reputation,,is it would be done right as right,period.
i bet if you do some phone calling around there,you will find the same. you may have to trailer the bike several miles,possibly.
i'd hate to guess what a honda dealer would charge for this. it's a little different doing something like this when you are doing it out of your own pocketbook,,,versus hitting your warranty card,,,

just a thought.
good luck!
take care,
bc