Hmmmmmmmm
813 has a fair amount of curves to it and a great lunch spot is the Rockett Cafe in (of course) Rockett. No police stations or the like, but the whole of 813 is probably only about 15 miles once you get out of Waxahachie.
I would love to help, but I am not a good "route planner". On the bike, I let others lead and I follow.
The nice think about it down here is once you get out of town, almost all the roads are wide open, mildly twisty, and beautiful Texas country.
I would love to join wherever you do it, thank you. I haven't purchased/started my Cobra yet, so if you don't mind a Red Chevy Diesel Crew Cab in the mix (or maybe a Suzuki C-50), I would love to join. Of course, if anyone has an empty seat...