Hi there,
Thanks for this opportunity! I have 14+ years of experience in Web development and after reading your requirements I'm 101% confident I can help you with your task. You can test me in any way you want, be it by solving a short but complicated task or answering questions.
You can get to choose a cheap Indian company from overseas that will outsource your project to 10 other so called developers that most probably will give you a lot of headaches down the road OR you can choose to work with a small and talented team that focuses on quality, on your exact requirements and on getting the job done to the highest possible standards, all within you budget. Moreover, my english is great so you can be sure that there will be no language barriers.
Regarding your project, I can do this with WPBakery in 2 ways. First by creating the page addon and you will just add a text or video to that addon or secondly, by creating it using elements from WPBakery and adding custom CSS to it for the responsive layout. Both of these are very extreme in my opinion and it's better to go with the 3rd solution which is to create a WP template with custom HTML and CSS using your designs and in this way you'll be able to edit texts/change video from WP Admin and create multiple pages with the same template.
When you're available, let's discuss your requirements in detail and if we decide we're both on the same page, we will then take it further and get this done ASAP.
Regards,
Kalin R.