Re: new to the site, need lots of help
depending on your budget and mechanical ability there are many ways to go.
I believe many members would agree that building the first one has a learning curve so keep it cheap and simple at first. after you have the hang of it pawn the cheap one off on the wife and build what you want after.
My experience was just that i bought a inexpensive kit and the cheapest cruiser bike i could find i had a running motored bike for under $250.00 you could find a used bike for less but under power i wanted the new parts.
Looking back I wish i had taken the time to build frame up. using a steel back wheel and large diameter spokes but the stock ones are still holding up.
With the shifter kit available you can go crazy but a 23mph or so stock engine kit on a bike is loads of fun.
Welcome aboard and good luck be sure to post pics even before you start. Simple hand tools can get you going and anyone can can do it.
Ride it like you stole