Restoration 273

I am begin the restoration of my cuda 67, I want have the original engine is a 273...

I bought a hookers headers for fit in my car, I bought a Edelbrock intake manifold, and I have a Edelbrock 500cfm 4bbl.

I want replace the camshaft and the ignition system, my answer is: which is the camshaft appropriate for me??? and which ignition system?

Which other parts must be changed???? water pump???? fuel pump????
My engine have the mechanical lifts, i saw kits of camshaft and hidrahulic lifts, can I fit thats lifts into my engine????

Thanks!!! and sorry for my ignorance...