Need help in DC/Northern VA - Tonearm board modification

I’m looking for help to modify the wooden tonearm board of a vintage turntable (Denon DP-80/DK-300). This would involve the following tasks:

1. Removal of a jammed tonearm nut from the base board

2. Drilling a new hole of a different diameter on the base board at a specific distance using a drill press

The baseboard material, I believe, is resin treated 30mm plywood and would need drilling using a Forstner bit. I have tried reaching out to multiple people/shops for help locally but no luck yet. If anyone here knows a person or a place that I should try, please let me know. Thank you for your help!