Any one know sources for VCR Belts in the USA?

I have an AIWA HV-MX1 that is in need of belts but am not sure of a good source.
I would prefer a kit for this machine since I suck at measuring belt (stretch them, don't stretch them, account for stretch, double the measured length of unbroken belt, etc.???)

Any suggestions are always greatly appreciated.

--dES