The BFG's are 35x12.5x15. As you can see the treadwear is a little uneven. One is about 1/3 tread, another 2/3 tread, and the other two are inbetween those.
The michelen's are low on tread but would make a great spare. They are both 265x65x17.
I'll sell all four of the BFG's as a set for $175, or the 3 with the least tread for $50 each. If I sell them individually I'll be keeping the one with the best tread as my own spare.
Heck, I'll give away the Michelens. Just come get them.