The following is a few links to the components used. I would like to take the time to thank the members here who sent me parts an advise on some of the parts to use.
The lens came from ebay. It was a 74mm massa multi coated lens. I wasn't sure what I would end up with but it turned out to be nicely coated and 2mm thick.
http://www.ebay.com.au/itm/74mm-Optical-Glass-MCUV-MC-UV-Multi-Coated-Ultra-Violet-Filter-Lens-for-Camera-/190755000818?pt=AU_Filters&hash=item2c69e251f2#ht_5135wt_932
The reflector came from DX. I have read reports that some members have received poor ones. The one I received was fine. It is advertised as being for an SST-90 led.
http://dx.com/p/sst-90-smooth-aluminum-reflector-7-3cm-diameter-47996
The rubber switch boot came from FT. The rubber nub was cut to length to suit the switch.
http://www.fasttech.com/products/1275401
The switch is a 10 amp Judco which was sent over by a member here. l'm not sure which one it is.
The driver came from LckLed and did not work. It worked fine on a XML before the 9 amps killed it in a millionth of a second. With the MTG-2 it would only operate on low. It did not matter what voltage was fed to it from a bench power supply. The light has been fitted with the IOS driver that has its own problems but it is up and running.
http://www.lck-led.com/26mm-9000ma-driver-modes-sst90-p-863.html
This is a close up of the led and isolator. It was machined from a piece of 25mm black plastic or teflon that was kicking around and so far has not melted. The step for the reflector is 1mm in depth with an overall thickness of about 2.5mm. The reflector does have a very few minor imperfections around the led opening but I don't believe it will affect the beam at all.
A few different shots of the assembled light. With 26650 Trustfire batteries installed all up weight is 3.5Kg. This will be slightly higher whenever I can get 32650 batteries.
The next couple of pictures are with the HD2010 for a size comparison of the reflector size.