Hi ya! I've heard it said, but could not find it on the SM site, that meshes for Paul and Pauline are free to use for modelers for clothing construction and similar. Which would be commercial use, but not for gaming... It's never been stated that the older characters (Sydney & Simon, etc) fall under the same plan. Perhaps if you ask Smith Micro?

As for your request for modelers to help you create something, this forum may be a better bet. https://www.renderosity.com/mod/forumpro/?forum_id=12402

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Andy!