Another thing going against the Soviets is that the US is far more capable in engineering than the Germans. There is no reasonable comparison here. The US would have built paved roads, railroads, pipelines and, anything else needed to support their troops as they advanced into the Soviet Union. In 1945 there were over 250,000 seebees alone in service. A single seebee 1000 + man battalion could have produced more finished work than 6 or 7 thousand Organization Todt or German construction engineers could simply by virtue of the mass of mechanization they possessed.
The US Army built the Alaskan Highway using just over 3,000 men in less than 14 months. Unlike the Germans, the US would have found the weather not a crippling factor in fighting in Russia. If anything, the Soviets would have been at a disadvantage.

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Truth is stranger than bullshit!