Not too much help, but I knew a guy about 5 years ago that was always in the 90-100kg region that rode Reynolds carbons without issue.
On another note, are you sure it's your wheel that is causing you issue in the rear and not your frame flexing? I have a Ridley frame permanently mounted as a trainer bike. When I was using a Kurt Kinetic wheel on trainer I had to remove the rear brake as the frame flexed so much it would rub, even with the caliper wide open. No longer a problem with direct drive trainer, so do bear in mind that you could be blaming the wrong suspect