That's probably wise, at least a front brake. And low-ish gearing for sure. I'll come across a low budget cheapo fixie at some point to fiddle with and then I can decide if I want to use it on a vintage project.if you get a version with front and back brakes you should be fine. you may just want to run. a higher tooth in back to help chug up hills.
I really like the way this one is coming out. The Monster Energy can is a nice accent and the faded green chain ring looks great!