I just bought this KBIC125 with SI5 board attached on Ebay. Fast three day shipping to Montreal. I got it yesterday, tested it today and its love at first try:)
Around 145CAD and there is more than 10 left. They seem to come with 1/2 horsepower resistor. Mine did anyway.
https://rover.ebay.com/rover/0/0/0?mpre ... 3320923799
Hope this helps someone.

I am new to Centroid Acorn (first post hehe) and I have to say that comming from the Arduino CNC workflow, it is such a tremendous pleasure to work with your product. Everything as been working first time on EVERY aspect of my HF 44991 build. More to come on that when I will come back from vacation!