It's so sad to see Godaddy retired the member-to-member auctions, I don't think that's the smart move, the expiring domains listed in the Godaddy auctions are far from enough, you should allow member to submit their domains, also investing on the...
It's not going to happen, let's face it, the easy money is gone forever, you can't find any alternative, Dropcatch/Snapname/Namejet/Sav don't allow private reseller or don't allow to put a reserve price.
If you retire the 7 day public auctions on Godaddy, why don't you open the new 7 day auctions on Afternic, with that alternative, people who do domain flipping can still make the business going.
I wish you get a better offer but in reality, you properly won't get any better offer in the next few years, there is no point to hire a broker for such a low value domain.