Got word today from Rampage customer service. See below. Several online retailers now show them in stock.
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Thanks for reaching out to us here at Rampage. The 98417 spice top was indeed on backorder for several months actually, but they are back in stock and shipping. Our vendors should be able to accept your order, and if they don't have them in stock in their facilities they may process it as a drop-ship directly from us.
Best Regards,
Bruce G.
Technical Service Representative