[USER=3883]@1olbull[/USER]
So the last parts have arrived (well in advance of expectation). Seller included the 12 screws and the thermal paste 
So now I have to open up that lens assembly (when the missus is not occupying her kitchen) - And start machining the heatsink to fit inside.
A rated 30W of LED power in RED - about 1200lumens. I can maybe put more on - but I'm not sure and will need to see how much metal is left after I trim.
With these 3 - I'd happily have them all as Tail/Brake. Tail would be PWM to about 100-120ma each (a little over 1W real each) - Brake a good 500ma each - closer to 700ma depending on heat.
- Any extras would be pulsing brake (on a timer). This I know will not raise temps much.
[ATTACH=full]67256[/ATTACH]
One thing I have to investigate more is the use of a diffuser over the LEDs - Not sure yet what materials to use for that.