I agree with the posters who said don't do it. With our HDT we can handle crosswinds that others could not, but we still try to avoid them. There have been a few times where I just slow down to 55 or 50 (62 is "normal") if it feels unstable.
Coming east across Iowa last spring there was a pretty strong wind out of the south, enough for me to slow down. We came past a semi on it's side in the right ditch and the remains of a fiver and PU in the median, don't know who lost it first, but the results were not pretty.
Just like snow and ice, if it feels uncomfortable park it and wait it out, after all you have your living quarters with you!
A friend who is a retired commercial pilot and a private pilot often says "The thing that kills the most pilots is get-home-itus!" Same for RVs.