Mag led/heat sink/pill - any dwgs?

[Probedude]

I just received my SSC P4 led's from DX and am itching to do a 2D mag upgrade. Already have the lathe and aluminum bar but don't know how I should go about making an LED holder/pill that 'drops in'.

Anyone know of any mechanical drawings online for an LED retrofit of a 2D cell Maglite? Looking for ideas for now.

TIA
Dave