1952 Topps Low Number Set
 

I can possibly purchase a 1952 Topps set cards #1 through 310 except for the Willie Mays card. There are 5 cards which have both a red and black backs making 314 cards in all. The set is a strong EX or better with very nice centering.
What should I offer for the set and what is the most you feel I should pay for the set?