I'm thinking I'll go with the fyxation rodeo pursuit bars for my panasonic conversion, have wanted a pair of bullhorns for the longest time. Since I have the tools and skills required, is it safe to drill my own cable routing? just a hole near the center so I can internally route a bar end brake on the left side. Would this affect the strength of the bars?

edit: and could you recommend a bar end brake that isn't bolt on? Not looking for super high quality, just something that will stop me.