How about using network over the wire (via power adapters like Tenda PH3 AV1000) together with Graham Stetzer Filters ? Could this still be usable and offer less exposure then wifi? Was there any research/has anyone measured and compared GS or other units on risk scale tables like these?
I think it would depend on how well the GS-type filters reduce the signals from the power line networking adapters. It would also depend on which frequencies one is particularly susceptible to...
Only one way to find out!