I am thinking of putting a reserve on the coins - is that acceptable in this forum ? If they sell for 1 btc + 6.5% (or even less!) I would rather keep them, cash in via priv key with any forks as well and have them as shiny conversation makers.
You can even make a hidden reserve making a sha256 of a string with your reserve (and some salt)
Then just publish the hash in the auction OP.
When reserve is reached or auction is over then can you just publish the string for verification