Could Japan have lost earlier if the US went for Japan first in WW2

Prior to building a railroad to Darwin, couldn't the docks and harbor there be built up to handle more U.S. ships coming directly across the Indian Ocean? And airfields around Darwin extended to handle American bombers? As to when Java could be captured, it would depend a lot on having long-range fighters and the development of skip-bombing techniques for bombers. One test: Could an invasion fleet for capturing Timor be given enough protection by U.S. planes out of Darwin to win? Or maybe seize a smaller island in the Lesser Sundas first to build an airfield that would allow for more time for fighter planes over the Timor landing site(s)? Could this be done without risking the still very small number of U.S. carriers? (A victory similar to Midway would probably be a precursor.)
Coastal shipping was the preferred method of moving material and supplies to Darwin. Quoted from an old thread from many years ago:
Cook said:
You are correct, the greatest hindrance to the growth of Darwin was its’ infamous dog-leg pier. The greatest service the Japanese ever did Darwin was bombing that pier out of existence. Whoever designed it should have been shot. A straight pier, with docking on both sides, crane facilities and a rail line right to the end were basics long before Darwin was built so why it wasn’t done is a mystery.
 
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