Originally Posted by jgedwa
3- Anything else I may not be anticipating?
1. What's your cable stop arrangement? Usually a cable stop is needed on the rear of the top tube to make linear pull brakes work. Many older mountain bikes don't have one there. Clamp-on cable stops are available - you need to measure your top tube diameter to get the right size. A work-around is to run cable housing all of the way from the lever and zip-tie it to the top tube.
2. How old is your bike? I had an old Raleigh Technium that had the holes for the return springs on the wrong side of the canty posts. Since the posts were welded dirrectly to the frame and fork, I never did figure out how to retrofit it with linear pull brakes.