Like bud said I would take one of the saddle bag locks or the gas door lock to the locksmith. If I remember correctly you would have to use a drill to get the stud rivets out of the ignition lock and then find a way to either replace them or use some type of bolt to put it back in. This was done at the factory to help deter theft. You could just haul the wing to the locksmith and maybe he could work on the key in the parking lot...
Harkgold, there IS a number stamped into the ignition barrel that corresponds to your key set. The reason you need to take the whole barrel in is to verify that the keys that you get cut do indeed work. They are notoriously famous for not being good keys once cut. If you have the ingition barrel with you, you can immediately check and see that the key does (or doesn't) work. And of course there is the locksmith alternative. Replacing all the locks and the ignition is costly (and a PITA) if you can even get them for your bike now.
I went to Lowes and had two 31r keys made. .38 cents which is worth the gamble. They both work great and will also lock the steering with no problem at all. I took a side panel off and plastic tied one to the bike in a discreet place in case of losing one.
I just had a couple of new keys made for my GL1500 (one for my wife, and one to cut up & turn into a removable gas-door knob). The locksmith pointed out a code on my original Honda key, and advised that he could make a working key solely from that code - no copy key required.