Hello Sir,
Joomla expert here. I can do this task. The price is a bit low for such a big project, but anyway lets do it.
I will make u Latest Joomla + Virtuemart, setup some demo products, setup emails, payment gateway, responsive template etc...
I work alone so u will have direct communicaton with me.
I will also bi availavle for feature support if needed.
Thanks, Naum