As to the question regarding why additional RIAA awards weren’t issued through Elvis’ lifetimetime. The answer is very simple. RCA was already issuing in-household gold records typically, so there really wasn’t any have to pursue the RIAA awards, although, from time to time it would appear they were pursued. https://andrezaxvp.blogkoo.com/detailed-notes-on-what-is-a-gold-record-award-48531307