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FWIW, I also got that message when I put it in the cart. But I proceeded and completed the check out. I checked my order status about an hour after that and it said "pending". Earlier tonight I checked again and it said shipped!I'm not sure what you mean by "available"... I can put it in my cart, and then it says:
Note: This is a new item. It is not available yet. We have no arrival date at this time.