[ger21]

I think what everyone here would want are both gantry, and moving table routers. There is really only one source for plans for under $100. If you could come up with plans for a 3 x 4 or 3 x 5 machine, that was easy to build, was fast (100ipm cutting speed), and inexpensive, and then throw on an optional 4th axis, people would be beating down you're door.

By far the busiest forum here is DIY wood routers. If you want to sell something, go to where the market is.