I am seriously considering this head. Will be used with a D800. However, finding a plate is extremely confusing. The Markins P810U is listed as the correct plate for the D800 on the Markins site, but there isn’t a single thing on their site that is in stock and I can’t find the plate anywhere else. B&H has the head in stock, but no plate. For those of you that use the Q10 head, what are you using for plates?