6-terminal wiper motor??

[ciscorusty]

Hi All - Newbie here, just got my 66 C20 delivered today, after finishing touches by my good buddy's shop in North Carolina. I think it turned out well. Hope the pics shows up OK.

Here's my dilemma:

Shop tells me that the C20 is wired for a 6-terminal wiper motor, which is missing. After searching the interweb, can't really find much on 6-terminal wiper motors. Found one that's designed for some older non-chevy makes, but not sure if it will fit. Questions:

1. Any ideas where I might find a 6-terminal wiper motor?

2. Any better ideas for retro-fitting to a more common (4-terminal) motor?

thanks for any suggestions,

rusty