website redesign with new CMS around existing database - ii

Hi, I need an existing site with CMS to be rebuilt. The site is running with a custom made CMS (MySQL database) A new design for homepage is available. Subpage designs can be derived from the homepage design. - The site must be rebuilt according to the new design. - A new CMS should be delivered - Content can be copied to the new CMS or the new CMS can be built around the current database The site is now built using asp. Use of php is fine (or better?). Functionalities - homepage with some teaser blocks to pages in the site - 2 levels navigation (to be designed) - content pages - news - publications - a calculation tool (5 fields and a formula to calculate the result) Please send me: - your price - proposed solution (open source CMS, custom CMS, send some screenshots) - reference of work done - approach and planning I do realise you may need more details to give me a good quote. I will pick 3 proposals to take a next step to come to a good quote. I expect final quotes and premature estimates to be close to each other.