286312 Wordpress to forum integrated

Good day, I have large video site running on wordpress, I am looking to make the front page a vb forum and keep all the current posts and users to be integrated in the vb bulletin as a link on the top page. The site will be a forum and a link will lead to the current movies. If it is possible I need all the URL links to be kept because everything is indexed in google and I don`t want dead links ( so wither keep them or redirected.) I need everything to be done offline first then applied to the site so that we will experience no downtime. Regards