You don't need to make the install dir, you do the installation in the install step. I'd suggest reading our packaging documentation, including the Package.yml article, It covers the various sections. You should also take care not to blanket copy to usr, you risk overriding system libs. For stuff like this, you're better off creating an opt directory, copying the contents there, and doing symlinks to usr/bin (a dir you would need to create) when necessary.
That being said, if this is in fact proprietary and not explicitly redistributable, we are going to refrain from assisting in any matters (beyond what I already have stated) that involve re-packaging this as it may violate copyright, trademark, licensing of the software, EULAs, etc.