Help please

I have a project to do. By far Wordperfect is the BEST software to use for this manuscript project, because it is easier and much more flexible than MS Word. Also, Can I download maOS High Sierra. I currently have El Capitan oaths computer because I can't take my desk top computer with me. I feel very frustrated right now, because MAC and Wordperfect aren't speaking to one another. How can I download Windows 10 just to download Wordperfect. I really need Wordperfect because it was also highly rated for editing capability. Using Wordperfect to do a 420 page manuscript will take half the time than it would take with Word. Word is not an option for this project. Help Please :-(