Yep a good Honda parts man is great to have around.Your local Honda dealer can be your friend. Give them a try.
There's nothing like having the part in your hand as you pore over the fiche trying to figure out what it is, and a good parts man can be very helpful at those times. Service people too, can help with damage assessment and such.
If your local shop can't, or won't help, then www.westernhonda.com is a good source.
But be aware not all are so great.
When my 88 broke a throttle cable the Honda parts man was not sure if it was cable A or cable B and the cable was laying on the counter in front of him LOL
Big difference in cables! I knew which was which, but I did not tell him, I just went to another small cycle shop and they put a new cable in my old housing for like $10 total instead of buying all new from Honda for the $35!
I also had to explain to them what Honda Molly 60 was, and NO it was not the rear end 80/90 weight he suggested LOL