Hello,
i read your requirement but its not clear exactly what you want to make in your developed design.
I am interested in your posted project and i've much knowledge about website development and desing , can easily manage and whatever you want to update in your developed theme. but first let me know your work you want on it. can you drop some brief detail regarding this work.
let me know your issue which you want to fixes in wp theme. can you share me your website url. is that alive? I am good PHP Devloper and Designer they can work in wordpress easily also comfort in CMS, framework. i have much exp. in PHP, MYSQL, JS, AJAX, XHTML, CSS, WEb development in CMS like Joomla, Drupal etc.
THANKS