Ok....so the next update.
Finally got to meet Paul Bottomley @ APS engineering.
Lovely guy, communicates well, seemed to understand what I am trying to do (which is make my car safer). Added to that - he really (like really) knows his stuff. Clean shop as well. First meeting cost $140 bucks, but yeah - he seemed a pretty reasonable sort of guy.
He said he would reach out to Ridetech as well, try to get something happening there - so let's see what happens.
I am getting the 4link fitted soon, so will update more once things progress.