1965 Barracuda steering column seal

I have been noticing a lot of hot air blowing on me from under the dash. Today , while I was driving, I started looking for the source. It did'nt take long to figure out that it was coming out from aroound the steering column. I knew that the seal was bad, but with this hot weather, it's getting put on my priority list. My question is, are these available for sale, or do I have to rig something to work? I'm really getting tired of sweating. I do enough of that at work!

002 (5).jpg