I've started to get things moving again, waiting on parts from eBay being the main hold up. I picked up some 3mm aluminium pieces and I tell you cutting that round piece was a labour intensive and unpleasant experience
The motor speed control is an awesome piece of kit and well worth the $9 and month wait while it came from China. It is adjustable and has a digital display which shows the percentage of max voltage, throwing the multimeter on I found it very accurate so repeatable settings will be a breeze.