I was very intrigued by the threads on photo.net about reverse processing RA4 paper. It is doubtful that I would be able to attend a US workshop on the technique, but I would happily buy a set of workshop notes, were any available. You could use a print-on-demand book service like lulu.com if you want to avoid the hassles of collecting money and packaging and posting the notes.
I would especially be interested in trying to understand how the various stages of the processing interact, and how to tweak and optimise them for different sorts of subjects or effects. In-camera use for ULF colour would be my main aim, but also photograms and conventional printing from transparencies.