I have had that brake for around two years and at the time he wanted a little over $100 for the set. He offered just the brake at $50 plus shipping (which still is too expensive, but the piece is soooo nice) and I was going to look around for someone to turn me a barrel. But time went on then the announcement of the
JS-2 kit made me realize I could get the barrel cheaper eventually and I did for $27.
I just did gather up the electronics so the wait was worth it. At least I won't have to buy a whole sprue of parts for a plastic brake, and then sand it down.

Just hope the elevation unit can handle all that weight... because it IS heavy!
~ Jeff