On our NSA breakaway, we use a separate block at the pedal but as long as there’s no binding, I think one would be ok.
As for the cable to pull the breakaway, ours hangs low and needs plenty slack. If not, it could pull your pedal and apply your brakes. This happened to us trying to maneuver in a tight parking lot. It pulled the cable enough to start applying the brakes, so have it adjusted properly.
I think that routing the cable between coach and towed vehicle will be dictated by where it exits your base plate.
Eddie and Jomaye, Retired
2018 Newmar Ventana 4369
2021 Jeep 4 dr Wrangler