Greetings,
Kindly share your complete requirements , so that I can let you know best time and cost for the project.
We are MAGENTO CERTIFIED DEVELOPERS and have done more than 400 projects on magento till date. In the recent past, we have developed many online stores like wine store,kids shop, fashion stores, mobile accessories shop etc along with many custom Magento extension LISTED ON MAGENTO-CONNECT.
I can also share profile of our certified developers if you want.
Regards,
Andrew