Commodore 1531 adapter

I was hoping to acquire a C2N, since that's a pretty common and accepted normal thing to have with a C64. But instead I had a 1531 turn up! This is the drive for a TED-based Commodore 8-bit, thus won't plug into my 64. Has anyone got an adapter to suit since such a thing was apparently a standard Commodore part, or schematics for building an adapter?