I want to use the following theme: http://test.nattywp.com/preview.php?theme=dhamma
However, I will be using it for retail site purposes so I would want to tweak things. I will need a database of inventory items which would of course deal with a shopping cart, etc. I would ideally like to use WooCommerce in conjunction with this somehow after modifying it's aesthetics.
What is the best way to really custom tailor an ecommerce site like this? I am a complete newbie to the possibilities inherent in WP.