You could always start there, and then see what sort of offers you get. You will save a lot of hassle by selling the whole lot at once, if you definitely don't want to hang on to any of the stuff.
It's a lot of money to fork out all at once for a collector. I doubt a "newbie" collector is going to fork out that sort of money. Most of us start by buying a pair here and there, and then making some larger purchases later in the game.
I think the only sort of collectors who will be wanting to buy all of it, will be existing hardcore collectors, who probably have a few of those pairs already. This means that they have to factor in selling some of those pairs (or their worse specimen).
So they won't buy unless it's an unbeatable bargain.
