Re: Hello newbie here.
I would strongly suggest front and rear brakes. At 20 or 30 MPH, you really want to be able to stop well. I looked at pics of your bike and man thats a beauty! You can get a front hub brake so not to interfere with the fender. They are a bit pricey. Or ask at local bike shop about alternatives. I have seen fenders cut back with a dremel that looked factory made. You have lots of options and that will be one sweet looking Motorized bike!
There are lots of folks from MA here. In May, a bunch of us are getting together in East Hartford CT. Would be a good way to look at other motorized bicycles and get a feel for them. motorized bicycle Rallys are a blast. Some great folks here.