i will modify your theme what you want. it is free.
i am familiar with prestashop 1.3 ,1.4. 1.5,1.6 ,I work prestashop has 4 years.
if you want,i can help you modify prestashop theme what you want. it is free.but i need you share my site in your facebook.
my e-mail: [email protected]
my prestashop site:http://www.tapyou.co.uk