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.