AEI Electronics Parts
224 Washington Ave N
Minneapolis, MN
612-338-4754
They punched the plates and installed the XLR and 1/4" TRS jacks in them for me (12 plates w total of 30 jacks). Pretty good price, I thought. Neutrik connectors. 4 years of abuse later and all the jacks are still working and secure where they should be.
They could probably ship you your order if you give them a call.
It's mainly an electronics hobby shop, but they have audio connectors and cable too. Not sure if they have anything better than Neutrik, though ... you'd have to ask them. Sorry, no web presence as far as I can find.