I don't think that Ford would buy it because they've already gotten all their publicity out of it for the cost of shipping it around. It's about to become old news, from their PR standpoint.
A guy like Leno might want it, and has the pockets to bid it to whatever it takes to win. Tough to call a price when two of those guys get into a bidding war.
I'll put in a guess at $3.1M