Hey mate, If you're looking at paraphrasing content to avoid copyright on Wikipedia, I am quite confident I could pull it off. I happen to be well-articulated in English. I have proofread many articles which have required paraphrasing and grammatical corrections from prior experience (I have done it for myself as well haha). To make it clear, I do understand how important it is to avoid plagiarism as it is highly unethical and an offence in certain places. Thus, I do not believe I will disappoint you in terms of the quality or accuracy of my work. I would need a bit more specificity on the content I might be working with to help enhance quality and approach to paraphrasing. I would be enabled to provide alternative diction/vocabulary helping in constructively deliver a specific point or idea with more impact. Pace of completion can be improved depending on your need :)
P.S. I would be gladly willing to do the job for a review at a slightly reduced pay (There are no obligations for 5-star review, but simply based the quality of work I deliver to you).