New project:
How to get rid of the HD style speedometer and indicator lights?
Fitted the bicycle computer allready on the steering bar.
Also the tachometer is on the steering bar, so far so good.
Managed to get an almost new upper triple tree for experimenting.
The indicator lights are LED's with build-in resistor so fit to accept 12 VDC. Dimensions: drill 8 mm and approx 30 mm long. Green, blue and 2 yellow ( amber not available)

Now for closing of the apperture in the tank there are several options:
1) Highly polished alluminium plate.
2) Weld a steel plate in the hole, bondo and respray (best looking option)
3) Stainles steel plate with cupholder
What do you think so far.
Greetz
Kropatchek 8)