Hi Sir,
We are a team of 4 members having 4+ years experience in magento and its complex solutions like product import, upgrade,etc.
Hope we shall get your requirement done in timely manner with high quality.
If we install themes for design, then the work will be done quickly. We have couple of commercial themes which will be fit in mobile devices as well, which we will provide you at free of cost. If we go with this theme, without any changes in site features we shall get the site done in maximum 3 days.
For further changes(if any), we shall discuss and provide you the quote.
Thanks