IrishJohn. Thank you for the information and offer. I am getting around well on the stock rigid fork (common beach cruiser called Madwagon, obsolete brand).
I am a light weight person with strong hands, so I do well with the caliper brake and rear coaster brake. (The caliper brake has a v lever and is predictable, the coaster brake is strong enough to lock the wheel at 20+mph) .
I think V brake bosses are the best option, because V brakes, even the cheap ones, have lots more stopping power than older type brakes (esp short arm cantilevers).
I'll look around for a vendor here. Surely one of the MB vendors like Sick will have a proper fork.
Thank you much for the offer though. I didn't know that it was illegal anywhere to sell a bike without 2 brakes. What about track/velo bicycles and beach cruisers? They only really need a single brake if any (velodrome bikes don't use rim brakes).
In Texas, USA, I think the law about operating a bicycle on the roadway requires "A brake equipped wheel capable of making the braked tire skid." This has been used to ticket some "fixie" riders in Austin TX (track bicycles).