Hey Dennis,
Look up Metal Plating Services in Edmonton, I think there are a few companies out there that can help you out, here in Calgary we have three of them that do a really good job. You will need to see if they can do a gap fill for you or a couple of layers of electro static plating. Your only other option is to go to a Goldsmith who works on custom jewellery, these guy's typically work for themsleves and not for jewellery companies. Good luck!
Cheers!
