I made a mistake on which elbow that spot was near. It is near the elbow of his non shooting hand.
My 72-73 set is complete but I may spot a few upgrades when I check my recently aquired (meaning in the last 5 years) dups against my set. I really need to gather all these groups of 72-73s and organize and consolidate them to know exactly what dups I have for trade. I'll update you as I find cards for your need starting with that #129 Willis Reed.
I am pretty easy to trade with as far as what I'd like in return. We'll cross that bridge once I get going on this trade.