Take very good pictures of the set and of each coin (perhaps using a scanner would be easier). Cut the pictures of coins out, so there is no huge empty spaces around them.
List on eBay under both Coins & Paper Money > Coins: World > Europe > Russia > Federation (1992-Now) and Coins & Paper Money > Coins: World > Gold
You can probably start the auction at $100 and see where it takes you.
If you don't have a PayPal account, it's a good idea to start one now.