Joomla Template site modification

We are looking for an experienced joomla 3.0 person who has worked with templates from themeforest etc. and can do modifications to template as per our requirement. Our list of modification include: add a template position on the top of the site so that we can show a certain module there change text headings font size to bold across site, remove the background of current template and replace it with this image repeated. add a png as border of body of site. In the mobile version, menu is not working, make sure it opens up remove + sign from gallery image zoom hover modify contact page form so that submit is left aligned, not right aligned. show map (image) on contact page. we want to keep our sites as responsive as possible on all devices and you must be familiar with working with them.