I love the '72 set, by far my favorite of the 70's, and have been working on it myself forever - like 30 years or so!! Not to rain on your parade, but if I had to do it all over again, this would be the absolute LAST set I would try to put together piece by piece.
In the long run, 787 total cards with those damn high numbers (if you're trying for mint condition) will cost so much that you're way better off buying the entire set somewhere and then maybe doing some upgrading. The "parts" of this set cost way, way more than the "whole". It's a huge set and for some reason the book value does not seem to take this into account. I think it's the #1 set for buying and reselling card by card. Good luck though!
I think the Clemente might be my favorite all-time card:
