Anyone know a custom woodworker who can make a case for a vintage receiver?

Check out Timbernation. I just ordered a pair of walnut shelves; reasonable prices, infinite options. 

not a case, but I built a ventilated surround/stand for vintage tube equipment

New Jersey Hardwoods, Plainfield, NJ made and finished the pieces for me from my drawings and finish samples, I assembled them with parts from Amazon

full description, many photos here

https://www.audiogon.com/systems/9703

Can stack up to 100 lbs on top, the back is fully open for access, and the lower unit can slide out without moving the item on top

I’m about to sell my Fisher 500C Receiver, no case, I think I’ll include a surround/stand with it.

I'd go along with what gkelly said, find someone local. My area has a woodworking club and you can go to them with your project and they'll have a good idea which members would be best suited for it. You now have someone you can talk to in person to accurately describe what you're looking for and they can get hands on the receiver to take all the measurements they need. You'll also most likely come out ahead cost-wise. Maybe your area has something similar. If not, there are LOTS of woodworker hobbyists all over the country just itching for a project, surely there's someone local to you.

I'd go along with what gkelly said, find someone local. My area has a woodworking club and you can go to them with your project and they'll have a good idea which members would be best suited for it. You now have someone you can talk to in person to accurately describe what you're looking for and they can get hands on the receiver to take all the measurements they need. You'll also most likely come out ahead cost-wise. Maybe your area has something similar. If not, there are LOTS of woodworker hobbyists all over the country just itching for a project, surely there's someone local to you.

contact Geshelli Labs, they have a guy that makes custom enclosures using a song you select. They were doing this for their flagship dac, so they might be able to do this with anything.