Where to get different belts?

[Arnefles]

Hello.

I'm rebuilding my Yokomo YZ-10 Works-95 and are thinking about make some changes at the drivelinesystem.

I have desided (I think..) to use the Tamiya 35t pullyes instead of the orginal 33t from Yokomo.

I think the pulleys are from TA-04/05? The are made of better material than the old Yokomo's.
I'm open for other pulleys also, any sudgestions-please tell!

But I need 2 belts that are a bit longer than the orginal, any idea where to get?