The trace pen will work but not when you have to cross over another trace, thats why a wire or a copper trace repair kit would be best.
This hack job would be reliable, it just isnt neat or pretty.
Would I try to fix it better? Not if it didnt need anything (although I couldn't stand to leave it that way)
But since you have to replace the transistor, I would straighten up that mess.
You would have peace of mind for your pin and future reliablity.