why?
"My mod must be unique in all aspects" has been the downfall of more projects on here than I dare count including many highly anticipated project.
among the unique ones that are released even Spoon's on man mission of WoD which is an entirely new universe, uses public assets including Retail/MediaVP models and iirc MediaVP background assets.
Most players dont look at the bg much unless it's poorly done or causing problems, they tend to be more interested in looking at what they are shooting at.