Is there enough demand for these Hankin boards Mike to justify all your hard work and time, or is it a matter of developing a working proto-type and a few brand new boards to start off with, then produce on demand ? Is tht the way you are approaching it ?
P.S - I take my hat off to you because you are extremely talented to be able to design and engineer all these boards, not to mention find and locate all the hardware, do the CAD drawings and then work out all the nuts n bolts. That takes patience and talent which you have in spades. Well done mate.
I intend to get them working them make an initial batch of - - - maybe 10 finished boards. After that I will probably assemble them in small runs of 5 boards at a time as required. There are quantity issues, no matter which way I crunch the numbers it just isn't worth ordering less than 100 blank PCBs from the factory as the price goes through the roof for, say, 20 boards.
Same applies to practically everything else like the heatsinks etc etc. I actually know someone in Cairns with a Hankin and they asked me to repair it about 12 years ago - MPU was stuffed so I said "can't help you" - I am guessing there are a lot of Hankins sitting in garage corners with no love.
Might be a good time to snap them up at a good price -