WordPress plugin development

Make a fully functional plagiarism of an existing WordPress plugin: free and pro version under the new interface design (the design is ready). But so that it is not clear that this is plagiarism, no traces in the code, no common features other than the features themselves. Pro version, if necessary - buy, provide. Accordingly, the options remain the same, but you need to make / bind a new design, make sure that the PRO version is activated from the key generator from my site. You can even copy-paste the code, but without a trace of plagiarism. Or if it's easier to assemble a new one. The main thing is that the plugin has passed WordPress moderation. The result should be two archives: Free version. The full version of the plugin, but with limited options. Pro version. Installed in addition to Free, to unlock all options. The Pro version is unlocked with a key that is generated on our website upon purchase. More details in messages.