I need an adapter plate machined for my 506's. I live just outside of Detroit, so this should be easy, but I don't know any machinists; I only know welders & sheet metal guys (hopefully a future membership at Tech Shop will fill this void). I made a sketch of the part I need in Google Sketchup, but I couldn't figure out how to save it as a jpeg or pdf, so I just took some camera pics (see 4 attached images). The dimensions of the 2 corner holes are not listed, but they are both 4mm holes, with a recess for counter sinking that is 7.5mm by 3mm deep; it is not important if the corners blow out, I know they are pretty close to the edge. The other 2 holes need to be drilled & tapped for M3 size screws. Let me know if you can help!