I am making progress. Got much of the stuff I ordered to make the light kits up today, including copper PC board, which I will start etching soon.
I ordered some 3 pin mini-din plugs, but it doesn't look like they are going to work out, so I am going to try some simple 3 pin molded trailer plugs. They look fairly small so they should be easy to tuck out of sight. This really offers the best solution as they are more weather proof and have a more solid connection.
I have some more LED's on order that I haven't gotten yet, but I think I have enough work to keep me busy till they get here. I'll keep you posted on how it goes..