I found a new camshaft to OEM design by Falcon Global (on eBay). They are the exact same item as Egge offers. Falcon Global is cheaper though - I made them an offer below their asking price which they took.

I purchased an OEM camshaft for my 62 T-Bird a long time ago. It's a hard to locate item which is the cam with the thrust spring and knob to timing chain housing fixture version. The box said elgin as far as I> remember. Just did a search and found these guys. Not sure if they are the same Elgin as it says on the box.
Anyway, here's one more source for ya
http://www.elgincams.com/