I really doubt your idea will be acceptable to the engineer.
I am doing a similar job right now, and the genset, along with the transfer switch, were specified, and purchased direct. I just get to install them. The spec on the genset was extremely detailed; one detail specified the noise levels.
In this case, the generator will be 'exercised' as part of a maintenance schedule, by the firemen. Loads will be automatically transferred; other installs will have you use a 'load bank.'
