I am experience guy in WordPress eCommerce site.I will help you to solve any kind of problem of your WordPress site.
I help you to:
-Add product in your site as your requirement.
-Add product review system.
-Add product Rating system.
-Add shipping system.
-Add shipping calculating system.
-Add discount coupon system.
-Add printable invoice system.
-Add sells reporting system.
I also can create for you a full eCommerce site.It depend on how many gig you buy.
Please contact me with your requirement before order.