Personally I hate paying even that much over spot ... just over 8% and if you only are buying a small amount it can jump to over 12% ... I use to buy at 5% over spot pre-panic so which ain’t out there today unless you buy face to face.
Back to your OP ... I don’t know about that dealer ... I stick mainly with JM Bullion or SD Bullion depending on who has the best prices at the time.