Gee Steve, I'm sorry to hear about your bad luck. Hopefully you can salvage some of your gear.
Now, I'm far from any sort of expert on AFB, but I watched a couple of youtube videos yesterday by the NSW Dept of Agriculture, done by an apiary inspector about AFB. He wan't too concerned about contamination of his tools etc, only the hive body, frames, floor etc. I remember that he mentioned the gamma radiation treatment for supers and frames including the combs etc and he said that bees do really well on irradiated equipment because the radiation kills all sorts of stuff besides the AFB. You could probably find the videos fairly easily (or I could, and I will PM you with the link as I can't post links yet). They are probably a bit depressing to watch, especially killing bees with petrol and soapy water :'(
I just looked up in my ABC & XYZ of Bee Culture (that I got today and am so proud of) about decontamination of equipment to see what it has to say. On page 194, it suggests that decontamination treatments "include, acetic acid, ethylene oxide, heat, high velocity electron beam, gamma radiation, and hot paraffin." It doesn't state what temperature the "heat" or "hot paraffin" has to be to be effective.
It is probably a good idea to check with your local Ag Department to see what is acceptable to them - hopefully they can recommend something that is effective and not have you running around decontaminating stuff that doesn't need to be and worrying unnecessarily. That way you shouldn't get into trouble for doing the wrong thing either, especially with a reportable infection.