Just to update anyone who might be interested in this: I did find a work around. I purchased a Fluid Flo from med systems. It is basically the same device, but about 1/5 the price. The catch is that it needs to work with an air compressor at 50 psi. So, I bought a HULK quiet 6 gallon air compressor, and presto I have a working system for much less money.
Nevertheless, I'd still be interested in getting an Electro-flo cheaply if someone had one lying around, as the fluid flo + air compressor cannot be used when traveling.
Also note: someone is selling one now on ebay, but when I asked questions about it (how old it was, why it was being sold, is it still under warranty) I got no answers, and the individual has no feedbacks. So that does not look like a good avenue to pursue.
Oh also I love love love my percussor!