With a good bender and flare tool it can be fun to do yourself. And if you do this one then next time and time after that you'll be more and more comfortable bending lines for brakes and so on.
Pick up extra, sometimes the coat hanger pattern doesn't work out so well and trial and error with real line is necessary to get the fit you desire.
That said, if you don't ever plan to make lines again just buy the pre made one.
Grigg