Can we get some pictures of the cases and the boards inside. Because I have to say your prices are on the high side, especially without verifying A). Working Status, B). Original or Bootlegs (boots are not aloud to be sold in a lot of places), C. Phoenixed, or Suicide Battery (last changed?). Let alone the condition of the Cases. I understand they come with the A-Boards, but unless they're working originals with mint cases, for some of these, you might want to adjust your prices.
You'll also be holding onto that grey board for a while. Grey Asian boards aren't really that popular and people usually have to sell 'em cheap to get rid of them. And you're double screwed with it being a Zero.
Btw, A-boards usually yield between $40-60 depending on condition.
Here, check out this price guide that was put together by the community --discussion and spreadsheet:http://forums.arcade-museum.com/showthread.php?t=187906
Some of these are right on the money, the others are disputed and discussed in the thread.
Not trying to price-police, just trying to educate, and help get boards into collector's hands.
If you're quoting eBay prices then I suggest selling them on eBay. There are many collectors here as well as MAME builders, so it'll be hard to pull a fast-one.