I will redesign it using HTML, CSS and will make it responsive with Bootstrap, if you have any suggestion you are most welcome , and I will make your back end fully fast functional with PHP not with wordpress, as a result you will have a hassle free admin panel which will be made only for this website, no update irritation no plugin of wordpress, anytime can be changed or modified easily and finally and most importantly your site will be fast,secured, will consume less loading time. Thank you.