1984 Gold Maple Leafs (GML) predate when the
RCM minted GMLs in all common fractions (1oz, 1/2oz, 1/4oz, 1/10oz, 1/20oz), so there might be specific collectors out there. If you are not in a hurry for cash, I would suggest listing it on
ebay at say $1900. Just might find yourself a buyer, and $1900 should put you over $1700 after the fees.
That is, of course, if the coin is in good condition. Condition does matters, as if the coin is banged up, it looses all value as a coin.
I wouldn't worry about finding a good dealer so much either. Just know the going price (check on kitco,
APMEX, etc.) when you are negotiating.