Has mathematical modeling been conducted of the amount of time it would take to generate the human genome?
They are working on it, and the answers are not coming out very favorable to the creationists' hopes. Here is one example:
Making Genetic Networks Operate Robustly: Unintelligent Non-design Suffices, by Professor Garrett Odell (online lecture)
Abstract: Mathematical computer models of two ancient and famous genetic networks act early in embryos of many different species to determine the body plan. Models revealed these networks to be astonishingly robust, despite their 'unintelligent design.' This examines the use of mathematical models to shed light on how biological, pattern-forming gene networks operate and how thoughtless, haphazard, non-design produces networks whose robustness seems inspired, begging the question what else unintelligent non-design might be capable of.
https://www.youtube.com/watch?v=EsbKzFdW2bM
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.