One thing i read about recently is the use of Electrolysis to remove rust. It was in a issue of Rod and Custom I believe, some months back and was a very interesting article.
I have not had time to make my own set-up, but perhaps you'd like to be the guinea pig on this...
A very similar setup can be found at http://antique-engines.com/electrol.asp
It would especially be interesting to see how a 36V charger would fare for this kind of job.
I would not recommend to use this for the ET frame or similarly critical parts, as the magazine article i read, mentioned something about the weakening of the steel structure, but I didn't look into it far enough to pass a judgement.
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