Drink the orange flavor-aid and get yourself a KTM single. They're seriously capable in dirt and street I've ridden waaay worse bikes on the highway. Do test ride one on the slab though. The vibes seem to mellow out at highway speeds and I can get pretty comfortable during long days. Well, long is less than 500 miles though.
The top end on one of these is enough to get you a whopper of a ticket.
weasels are ripping my flesh