Mike, one suggestion: find yourself a good short-block or complete 351-C and start learning on that. Its worked for many and the advantages are numerous: no pressure to get it done at any particular date, you get to drive the car during the rebuild, your learn the motor's li'l tricks at your own pace and maybe even take advantage of parts deals as they occur.
Expect to find absolute rubbish for sale with a few diamonds mixed in- it HAS been 45 years since these engines were to be Ford's shining star that 'King' Henry ll threw away. Your heads are excellent as are a few more parts you already own so this could be done on a reasonable budget.
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