So american to get caught up in the details.
It's the basic idea thats important, ie. running as many miles as possible at a "decent pace"
Sound vauge? well yeah, thats right, you can adapt Lydiards methods to any event in track, and many other sports.
Go for it, I gaureentee that after 3 or 4 weeks it becomes really fun as you experiene true fittness for the first time.
I was coached by a former Lydiard athlete and lucky enough to talk to the great man also.