http://www.ebay.com/itm/331498817388From what I understand these originally came with 2 sets of ctrl/caps lock caps, and maybe had a dipswitch setting to swap the functions of the keys? Anyway, on used boards you usually don’t get any extra caps, and 1.75u home row Tai Hao doubleshot ctrl keycaps are pretty hard to find.
Also, $50 + shipping is a great price.
Looks like the A switch needs to be replaced, but many potential buyers probably want to replace all the rest of the switches anyway, so...