Welshy,
Great job on your rear gear box! looks very nice! I am available if you needed my help. Can't wait to see the end product.
Alcyon,
I might be able to help manufacturing your layshaft as I know a few "child-labour sweat shop" in china that will do my biddings as well. If you don't mind, you can send me the solidworks files and they can CNC it.
I saw this on my cell phone:
http://www.ebay.ca/itm/ws/eBayISAPI....E:B:SS:CA:1123
I thought it was a blue alloy bumper.
But with closer looks, it's just a regular one with blue glow on it.