blew tire.... need leads to used/new 14.9x26 AG tire

[srshaw3]

One of the rear tires blew, while the tractor was sitting in a heated garage, apparently it was filled at (least partially) with antifreeze. Is this right?
I am now looking for a good (used?) 14.9 x 26 agriculture tire.

tractor if it matters is Ford New Holland 2120 (model year 2000)