Bryan also reproduced the Mar-Mac banjo for a while, but I don't think he is planing on ever reproduce them again. Some people seem to have had problems with the Mar-Mac design banjo. I believe that they don't work well with some of the modern valves, but I am not certain about the details.
The more conventional Aqua Lung style banjo seems to be very reliable, you just need to have a long yoke for them to work.
My guess is that Bryan will have more of the conventional banjo available in the near future.
If you need a banjo right away, you can always post over at VDH to see if anyone has an extra one they are willing to sell. I bet someone will be willing to help you. Since they have been reproduced for several years there are plenty of them around and most NAVED members know that more will be around in the future.