After carefully reviewing your Store requests, I came to the conclusion that our Team would have the perfect platform for you. We own the Technology and knowhow for creating and implementing the Modules/Features that you seek. This includes an easy to use Inventory module, Email-marketing platform to promote new products, Sales and Accounting administration Module, and many more ( including automated Tax calculation modules, payment modules and so on ).
I am looking forward into hearing from you.
Best Regards
Silviu