This is about 12 months late, so sorry to everyone with questions, here goes:
JBG: Thanks for the shout.
dirtwegy: The fan controllers are here:
http://www.ebay.com.au/itm/Temperat...47817121?pt=AU_Components&hash=item2585288ca1
dsiglin: The fans use the perforations to mount in, I made sure the holes lined up exactly. And yes, you are free to use the dxfs, thanks for noting their origin, please keep doing it.
whiskeynipple0088: see above to dirtwegy. They have been working well.
jamba: I used 4.5mm acrylic sheet, which is thicker than the length of the apple stand-off so that I could screw it down.
Again, sorry people for being so slack, this year has been hectic. I mainly answered those questions for anyone who hits this thread on google. By the way, my original motherboard tray was off by about 1.5mm on the rear edge, which made it difficult to fit in the case, there is a better dxf attached:
View attachment mobo_tray.dxf.zip