Did he finally put it into production? The design has been around for years now and as far as I know was never finished.
I've had one going for ~2yrs now in my Millett Hybrid and also built one for my PPA years back which is still in service. One important thing rds, do yourself a favor and modify the pcb to allow you to bolt down the two large heat sinks. I had one snap off in transit.
For one of the sinks it's pretty easy, for the other you can only get a fastener on one side but that's still better than nothing. And if you have any questions just ask, I may or may not remember the answer but I can always just look at the board that I still have.
