Use the pages of that Haynes manual to cover the bottom of your birdcage and buy the real deal....
http://www.faxonautoliterature.com/p...76%26yr%3D1970
You may also want to procure this offering from David Vizard. It's good for an elementary introduction to rebuilding the small block Chevy....
http://www.amazon.com/How-Rebuild-Yo...4955766&sr=1-5
Before you purchase even ONE PART, sit down and decide what you want the motor to do and what vehicle you'll install it in. Any motor you build needs not only to be built to a combination of parts in the motor, but needs also to match up with the vehicle and intended purpose.
For instance, those are pop-up pistons. With 64 cc combustion chambers, the static compression ratio would be around 11.0:1. This is incompatible with today's pump fuels if you plan to run on the street, so a better choice would be larger chambers to lower the static compression ratio down to somewhere between 9.5 and 10.5, depending on the rpm range you want to build to. Whatever you do, DO NOT BUY A CAM until you have everything figured out. The torque converter should be the last thing you buy. The cam should be next to last.
Everyone starts at the wrong end of the car anyway. Start with rear gears and rear suspension, then work your way forward. It's OK to build the motor first, but you should have a plan to coordinate the rear with whatever parts you put in the motor. I'll repeat. Sit down an write out a plan for the vehicle and the motor, then run it past our panel of experts before you ever buy one piece.