Flip-flop if you are going through Bastrop state park. Those hills would be a ***** to go down at 42-17, especially on day two. You could do the alternate route fixed and skip the park.

Also, the two brakes is a good idea. If you want to borrow one for the weekend, pm me. I have a Tektro rear caliper and a 17 t freewheel you're welcome to borrow if you want to go that route.