Re: NOOB question
It all depends on how much you want to spend. You use the word Moped, is that because you don't want one of these bicycle kits? You can start at a couple of hundred bucks and go in the $1000 range or even higher. There is also 4-stroke and 2 stroke, 2- stroke being cheaper but louder. 4-strokes also last longer but are not as easy to repair.
"Mopeds" can cost more and have to be driven as if you were driving a motorcycle while we on our "bikes" can bend the rules.
Let us know what you would like and we can go from there.