The reflector is 12.85mm wide & 11.13mm deep.
I have lots of picture towards the end in this thread post #36 thread & in the OP & #27 you can see the driver pics that ohoya took.
The only new part i haven’t shown is under the star, that isn’t a plastic pill as i thought but a nice little anodized aluminum shelf 
I thought it was maybe plastic because there was something white under the star, but that was just some solidified fujik or some similar thermal glue.
Let me know if there is other info you want.