Here are those pics you requested, if that was not exactly what you were looking for let me know. BTW see those flakes of powder in the pics. One of those in wrong area will bring the press to a halt. If your buddy insists on leaving his press in a woodworking area he needs to thoroughly clean it before every use or he will end up frustrated and giving up on the press.
One thing I did do earlier when looking at mine was removed the slide and sanded a small radius on the front (where the primer sits) bottom of the slide to help it ride up and over that punch. Also took a few thousandths off the slide in the same area so if the punch is slightly protruding it will not contact the bottom of the slide, hopefully the primer will just ride up in the slide. Have not really tested doing real loading yet so not sure how it will do