Get them while you can. I ordered the spout from DS Tactical a while back, and with shipping it cost just about $45.
Trixter, I checked when I got home after we talked tonight. (Dunno why I keep thinking $60).
Still a lot for a spout, mind you, but it works perfectly if you've got the MFCs. You can also make you own with plumbing parts from Home Despot. The MFCs have an inner thread in the opening that's standard.
Also, if you're looking for MFCs, there's a local guy who runs a surplus business out of his backyard (somewhere near Richmond, I think), and has about 50 or so on hand. They're used. Think I paid $10 or $15 per can. I picked up 4, they stack nice in the corner of the garage.