Do a search I beleve unstock240 has some pics of what he did to modify the cable brakes to work well,and I believe he incorporated a slide system for the caliper.Do a search he has pics of it.
Glad it worked for you.Personally I would have just swapped the caliper bracket around on the back side and use longer bolts and spacers to make up the difference rather than grinding down the caliper.Either way it worked for you and thats all that matters.Good job.