total led beginer

First post hope its a good one. I need some LED experts help on building some tail lights for a 12v truck. I have read and looked at diagrams and even gone as far as asking Mr Radio Shack about this. I am as confused now as I was when I decided I wanted LED lights. My truck has all new wiring and has 3 wires going to each tail light bucket (running, brake, & blinker). I will not be using the backup light wire in the buckets, I will have these in the rear bumper. I have made a mock up drawing showing how I would like the LEDs laid out with dimensions. The little x marks each LED center (not knowing how close LEDs can be installed I used 3/8" center to center). So running and brake lights on top on one board and the blinker on a seperate board at the bottom (the bucket has 2 different cavities, the blinker area is where the back up lights went).

[IMG]https://i872.photobucket.com/albums/ab289/gd71eb/photo1.jpg[/IMG]

What I am asking is a idiot proof (crayon drawing) rendering showing how to do this. I would also ask that there be a purchase list as to what parts (brand, size, capacity, ect) to buy. Again crayon friendly. Just pretend you are helping a 5 year old put bling on his Radio Flyer wagon.

I am very hands on mechanicly savy so the building of will be no problem. Its the functionality part I have the trouble with. Please chime in with other better ideas, and again any and all help is really appretiated.

Thanks

Message said to update car info so....

1970 Ford Bronco

351W, ZF 5sp, Dana 20 w/pto

all fiberglass w/ custom interior design