http://www.vintageconnections.com/
I wouldn't be able to make a wiring harness for a motorcycle without Vintage Connections.
The only way to fit all those wire connectors into little spaces is to use those mini motorcycle type connectors and they got 'em.
And about Apex Cycle, I knew the guy who runs it, he has some excellent stories about how he sourced his parts. I'm out of touch with him now but when you don't get an immediate response he is probably travelling or something. He's wasn't the type of person who would cheat.