connecting throttle with HiGo signal connectors to CA3

Hi all. Finally assembling a splendid ypedal geared hub 36v kit with the CAV3.
The kit's throttle has HiGo signal connectors as explained in this helpful ebikes.ca page .
Does anyone know of an adapter between the HiGo and CA's JST-SM's? Or will I need to wire it myself?
As an aside, I am using grintech's shunt to connect the controller, battery and CA.

ebikesolutions (I think that's the name, I forget the website) in germany has higo stuff, adapters, etc., though they weren't cheap. they have a thread in the for sale section with some of their stuff.