Newbie in Huntington Beach, CA

Hey everyone! I am brand new to this but can't wait to get started on my first build. Already got the bike- A 7-speed firmstrong beach cruiser I bought used for 120.00 now I am searching for a motor kit. been lookin on craigslist, just a matter of time. Right now Iam researching for a headlight and tail light kit w/brake light. I am going to make it as legal as possible, don't want to build it then lose it to the cops for little more time and cost.