It's a pretty easy process. Finding a good DC power supply is the hard part. Does take some messing around to get right, but once you do figure it out, you'll wanna do everything.
Best advise i can give you is this:
1. The shiny-er the part is going in, the shiney-er the part is coming out.
2. Make sure the part is EXTREMELY CLEAN
3. Dont touch it with your bare hands after cleaning it...it will leave marks.
I dont rememeber where we got the coloring or what we used. Could probably get that info at a later date. Good quality lead plates are a must.
If ya have any questions, let me know and i'll see if i can drum up an answer.