I must be looking in all the wrong places, because every pair of RCA field coils I see go for upwards of $4-5k and prices have only been going up. Considering the risk involved considering the condition, I don't consider that much of a discount.
Even the permanent magnet ones are all going for almost 2k. Supposedly the sixmoons dudes got a pair for only $1000. If I could snag a pair for that, the sound of my wallet snapping open would not be unlike the sound of a gunshot...
Heck, Steve Schell listed a pair of Altec 287 for 10k on ebay recently. He got no takers, but if anyone would I would think he has a clue about what the market is.
John