Online, there are a few vendors. I've used Plano Power for online look-up and they seem well enough organized. I don't do enough Honda belts to have all the answers, but can sometimes avoid disassembly issues with all the rusted metal baffle hardware by lifting the engine off and snaking it back through. Post the complete model # if you'd like more guidance. I'd give the trans pulley a quick spin if you can to see how it is working. Hopefully you have a good find there!