Hello,
Your requirement - Conversion of HTML to responsive Wordpress CMS match my expertise and experience. I am sure and confident that I will certainly fulfill your mentioned requirements (1-3). I will also provide demo link to track the process at your end.
Please could you share HTML website link to review?
I am proficient at WP Multilingual plugin development, Picture/Video Gallery plugin development, Advanced Custom Fields, RWD (Responsive web development), HTML/HTML5, CSS/CSS3, JavaScript, jQuery, AJAX, Bootstrap, PHP, MySQL etc.
Please do ping to discuss further.
In anticipation,
Brijesh N, WordPress Expert