CNC for PC boards?

I'm looking to be able to mill PB boards and front panels for
electronic equipment, I would think that the largest PC board I would
ever do would be 12" square.

I would also like to be able to mill a standard rack panel (19" wide
x 8" tall max).

I currently only have a drill press and a small band saw and typical
hand tools (files, wrenches etc), I'd rather not have to buy too many
tools to be able to build a CNC machine.

Ate there any Good CNC machines that would fit my needs commercially
available for under $2000 (though I'd like to spend less than that)

Are there any "Kits" with the parts already machined and ready to be
assembled?

Thank you