I have to agree with with Lauda on this one. Collecting stuff without opening it is all fine and dandy, but these genesis coins were sold with the intention of being traded with other users. Since distribution of #'s were random I really do not see any reason to keep it sealed. Unless you do not want people to finish their sets, which will only make it more likely for you to not get anything for the box in the end.

Why not just start the auction with a lower starting bid.  Move the decimal point 1 place to the left: .1BTC for BOTH pieces.  You need the money, right?  It does you no good sitting on this stuff.  The Genesis coins are probably worth less than $75, because it would only appeal to people who are in need of those specific missing coins.  Very small audience. 

If you want auction action, if you really want to spice it up, then lower the starting bid.