Bought one on ebay from Metdetdist. He shipped it very fast, brand new. I registered it with Minelab with no problems.
https://www.ebay.com/itm/MINELAB-6-DD-SMARTCOIL-COVER-FOR-EQUINOX-800-600-BROOKLYN-NY-MINELAB-DEALER/333122302373?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649