I'm pretty sure they're not surface mount chips... aren't they just DIP chips, but soldered to the board? If you can't get anyone else willing to do it, I'd be willing to help out. I haven't done this exact procedure, but the desoldering part isn't a problem, and my EPROM burner should be able to read and write these chips... and if I have any problem writing, it seems that I can email the file to one of the others who can do it, and they can burn you the chips and you can pop them in the sockets that I'd install.
Drop me a PM if you'd like me to look at them. And I'm in the DC area if you're close, and would like to bring them by rather than shipping.
DogP