Are you bidding on an auction basis for them? If they all come in the padded/shippable containers, that helps a lot. It all obviously boils (ha) down to how much each set could pull in. There's a Wheaton micro kit listed for a few hundred bucks, but it might take forever to sell (and that price might be crazy). Sales seem super slow or even stuck for that niche. If they're just the basic sets like the one shown, they probably wouldn't be worth a ton, maybe $100 tops as a guess, but they'd likely take a few years to all set. If you can get it for almost free, then that's a good problem, as long as they'd stack nicely at home.

I'm not familiar with these, so I'm just guessing here. If you have more info or confidence they'll sell at "X," then don't hold back if you have the space and patience.