Need help finding a tire

[Thealien]

My 1972 GMC Jimmy has 4 BF Goodrich Radial Long Trail 31 X 10.50 X 15 tires with most of the tread left. I just got a bed mounted spare tire carrier and want a matching tire for a spare. BF Goodrich no longer makes that size tire. I will gladly pay shipping if somone can locate me a (preferably new) or used Radial long trail in the size I need

BF Goodrich informed me that Sears, Sullivan Tire, Town Fair Tire, National Tire and Battery carry their brand and one of them may have one in stock. I have contacted all the local retailers.

Thanks
Mark