not much help, but the majority of the runways built in the northern territory were 5000 ft for bombers and 2000ft for fighters. The airfields were pretty standardised, so that they didnt needto modify airfields if different types used them.
In NG things tended to be a bit hairier, with hils and vegetation always an issue. Whenever an airfield was captured, the US engineers invariably had to lengthen it and strengthen it to accommodate the heavier US types. they got to be very good at this