right now iv go then down to planning the layout of the PCB. the Led's Used are PLCC 6 superbright 5050 SMD LED. (proably not there true name but only what i can find them as called)
they are pretty much these LED's on these bulbs,

so far i have a design for the LED's Using 25 LED's each Reflector,
seen here on paper on the Reflector.


how its going in the reflector, there is quite a large gap between the back and the front of the Reflector, so im going to cut a hole in the flat end of the reflector on the side and slide it in. so it sits exactly like the paper on top atm but inside.

now i dunno about the layout of the LED, but its easily changed, and i have a blank picture of one so if anyone want to redesign the layout, you can do so on it and post it in here.

BTW, if you want some i might be doing this for people, custom made(LED layout) if you want Can even add indicators on each side. just means an extra wire out the side. so 4 instead of 3.
Each Reflector will have Parker and Brake brightness. so duller for parkers and bright for brake. easy to do, when each LED is 3 Separate LED's in one package.
I will probably end up rotating the LED's so there is more room in the center use less LED's and spread them out more evenly, as i still need to add tracks and resistors Resistors use will proably be the SMD 603 5% resistor. i dont know value yet as i haven't worked it out.
anyway if you want to help me on the design. go right ahead, ill be creating these once i buy the LED's after i workout how many i need. total cost for the board and LED's will probably be reasonably cheap per Reflector.