set up wordpress plugins

Hi, Need someone good with wordpress plugins ! set up my new wordpress site .. its a website for premium themes and I downloaded plugins like " wp theme demo bar" I couldnt know If it works well so I need someone to set up few themes on the website (download) without activating but for customers to preview and there is block composer I need to set it on the homepage but didnt know how to also pricing plan plugin need to set. very easy for people who are familiar with wordpress. more details for bidders Thanks!