new dedicated circuits?
You can cut a small 1" wide channel, from the bottom of the panel downward about 5 or 6 inches. Then knock out a half inch hole in panel bottom. Now you can use a short piece of 1/2" flex to get from panel to first 4 square box. Then you can go surface mount with more flex, or 1/2" pvc from box to box. This will accomidate two or three corcuits easy. Good luck....
See my work-Check out my album. "Git 'Er Done":D