Developing an application for Blackberry

I have an online business that provides online grocery shopping services and need a shopping cart application to be used by Blackberry Our web site is built on ASP and uses SQLServer DB. I need to make sure that ASP platform existing on the site accommodate the blackberry shopping cart application. The Blackberry application should enable the user to: -Browse through the categories of the different items. -Add items (with pictures, , item name, code, price) into a cart to check out. -There should be a favourite list, the option to speak to an agent for assistance and trace orders. Please provide me with feasibility of doing the project, estimate cost and time frame required. Kindly tell me briefly on your experience developing similar projects along with your E-mails Existing code, logos and other required inputs from side can be provided to winning bidder. Thank you Roy