My $250 dollar Dream (with compression!)

[rampelsauce]

Im new, always wanted a dream since I got into old japanese bikes. I happened across my new baby when I was looking around at a guys place who was selling old misc shop stuff. He said, the owner wants 300, but I can do 270 for you. Well, I hemmed and hawed, and got him down to 250. I got it back to the house, and me and my dad started looking at it in great detail. Not only was the thing complete, but in amazing condition. That afternoon, we went thru the electrical and patched some chewed up wires, and decided we should hook it up to a 12 volt battery. The lights worked. We were already giddy with the glory of a great buy, but this made me almost wet my trousers. Then I just figured I would hit the starter button. Thats about when I almost passed out. The starter spins, and it has compression.

Please dont hate me for my bargain, because now I need help. First I need to decode my serial number off the engine so I can get a year and other specs. Then I need a good source for the shop manual/repair manual with wiring diagrams(if someone has a pdf for free, that would delight me to no end). Then I need a good source for period correct mods that I could possibly do. I want this bike to look as classic as possible. Thinking of painting it up like an old military bike and putting hard boxes on the sides. Any feedback would be great. Thanks for reading my post.