There are a few local places that carry pretty decent looking kits but I don't know if they'll fit well in terms of circumference, though I suppose the steel mesh flexes a bit.
I suppose I could measure the circumference of my hoses and calculate the diameter so I can compare them to what's out there.
The way things are going, I almost doubt there will be any appreciable demand for 3.7L kits, at least not for a very, very long time. I have found limited kits for the previous generation 4.0's, so you never can tell.
Meanwhile, I might just monkey with some universals. It'll give me a little more fun while I'm saving money for a driveshaft and new wheels/tires.