Hi, welcome aboard the forum!
There is quite a bit here on tables for the H37C (try search). A lot of people are amazed by the amount of room in the cabin with the table removed - you could almost dance down there - so several owners have designed tables that fold up against the bulkhead to preserve that spaciousness. Its just possible that someone might have an original table in a garage or attic somewhere. However, the cost of shipping something bulky like that could run high?
Another option might be to reproduce the original table yourself; it wouldn't be complicated if you are at all handy at woodworking. I could try and take some measurements off my table and make you a rough sketch, if you choose to go this route (but not until after Xmas at this point).
Also, as keeper of the H37C database, I would like to enter your boat, if you would care to share your HIN, boat's name and home port. You can PM or email me...or just post here.
Great boats - enjoy!