I guess tolerances are relative, depending on what you are working on. I agree, that you don't want a lot of slop in the holes and would prefer minimum clearance. 0.005-.010" accuracy on the hole placement would probably give what is needed to make it work and should be achievable by a someone who understands how to use a layout and drill accurate hole with a press. A Bridgeport would be a slam dunk. By contrast, the project I'm currently dealing with at work has tolerance requirements of less than 0.001"for relative hole location accuracy, and that probably tainted my original comment. Regardless, I think you did a great job, and appreciate your efforts as they make it easier for those of us that follow.
