Hi Pilotpond, I would like to add the Kawazaki ER-6 to PTRider's suggestion of a Kawazaki Versys. Good deals should be available for the ER6.
For a short inseam perhaps raise the forks to lower the seat to ground ratio.
One of the members of riding group has an ER6. She has no trouble keeping up with us at highway speeds, as the ER-6 can reach the same top speed as the Wee.
There also a few Kawazaki Versys / ER6 forums that can make for valuable reading, should the need arise.
Good luck with your choice.