For sale, two working 49-way joysticks (orange balltops). with two of Dave's USB 49-way interfaces, and the needed cables.
$100 plus shipping.
I was going to do a 49-way cabinet, but I ran out of space. These will work fine with 8-way games, analog games, and 49-way games, and are seen as analog joysticks under windows.
The interfaces also each do ten buttons, so you wouldn't need any other encoders using this setup.