Check at Hennie's or any local hardware type stores for a Norton India stone. It should run about $40, and be double sided- go for the biggest one you can find, as if you get a smaller one you'll wish you had the bigger one should you ever try sharpening any larger blades.http://www.nortonstones.com/Don't skimp and get a cheap stone as you'll end up with gravel all over your floor. Many of the cheaper stones from days gone by will be carved up by modern steels.Def
I even sharpened (touched up) a kids SAK on the bottom of a coffee mug, him and his friends jaws dropped. I was king of the monkeys for at least a minute! LOL!
The easiest thing for you to do then might be to look into a dog bone type sharpener and keep your edges in good shape as much as possible, then cajole one of the other UK members to give your blades a serious once over every year at the meetup! Def
Be nice to the poor guy- by the time summer rolls around his kids will number into the double digits! Def