My other ride is a 690 and I just went through the issue of a faulty regulator/rectifier. I was directed toward the Mosfet Style of R/R instead of the Sunt style as a possible upgrade/solution.
I initally purchased the "Kit" from this guy: http://roadstercycle.com/Shindengen%...rade%20kit.htm
but didn't like the breaker (vs. fuse) in his wiring for the wet pacific NW so I ended up getting some electrical components from this guy: http://www.easternbeaver.com/Main/El...onnectors.html
and would just get the entire thing from him in the future if I did it again. (very prompt service for a large order of many small pieces)
gefr - you get rid of that crappy connector all together and make solder connections to the wires to the stator. In its place you have a much better sealed unit and you can locate it anywhere on your bike you want. I plan on converting my 950 as soon as funds allow and think that I'll end up moving at least the starter relay, and maybe the R/R too, to a much more dry environment.
I can tell you that the hole spacings in the Mosfet unit are the same as the stock unit so, it will bolt right up however, you have additional space requirements due to the connectors. I'm not sure if they would conflict with the skid plate/gas tank or not.