Originally Posted by rjmmusic  ...I'll do some math and figure out the allowable corner radius and tolerances....... |
A 1/16" corner radius is made using a 1/8" cutter which is eminently doable, anfd I would be very surprised if you cannot accomodate that. Also I think you should be able to aceppt tolerances of nominal size plus 0.005" minus 0.000" which is trivial on a CNC. I have done many similar front plates for some products we make.
Don't be surprised if any quotes you get seem high for such a simple part; it is a bit fiddly and time consuming to make a little setup to do these type of low quantity jobs.