I followed this, for the most part, when I changed the cam on my old engine.
http://www.73-87.com/7387garage/drivetrain/cam.htm
You have to cut the core support (I had to, anyway...) to get the cam out. I cut it with a hacksaw, and screwed it back together with a piece of scrap sheetmetal and four self drilling sheetmetal screws. Painted black, it isn't visible, and it was quite strong.
I didn't remove the condensor. I just unbolted all of the hard lines from the fender, and lifted it up just enough to clear the cam.
Let me know if you have questions.
Slonaker