I would put his age around the 1970s. His issues are: his head is not permanently attached to his body, some fading to his outfit, and normal wear from use.
I have not see another one like this for sale. The item "Giant 6 1/2 Foot Tall Santa Claus Made By Harold Gale Displays" is in sale since Thursday, May 9, 2019. This item is in the category "Collectibles\Holiday & Seasonal\Christmas\ Modern (1946-90)\Figures\Santa". The seller is "thegrandtreasure" and is located in Ada, Oklahoma. This item can't be shipped, the buyer must pick up the item.