I'm in the exact same boat. I need a 1912 $5 gold to complete the $5 set and I also need the 5oz penny to complete my farewell to the penny set. There seems to be fewer silver pennies for sale so I think I'll grab one if I can get my hands on one. Perhaps I'll trade my 1913 gold for it. The design on the gold coins is pretty much the same (although the penny is as well) except for the year. The penny stands out when displayed strictly by its massive size and they fact it's silver. I think I'd go for the penny if I can find one in my area.