API Widget styling and website integration

Hi, I have a project that requires a secure online booking system, this must be very robust and have specific functionality which includes: • On hover over the diary any 'Offers' for that day will appear in a pop up, then you can choose to accept them or not • These Offers will only be at set times of day so when accepting them the customer will only see the times available At the moment the widget shows the date, then the offers are at stage 2 of the process. The widget must also be skinned to fit in with the website, I like this booking where they have used a jQuery Accordion and the style is very simple, if not this then something that fits with the website. [login to view URL] There will be 3 websites to start with but eventually growing to 6 that require this, obviously creating the functionality will only have to be done once then the skinning will need to be for each of the 6 websites. Can you please give me a breakdown in cost for the initial creation of the functionality as required above working with the API, also a separate cost for skinning each Widget. Please find attached a copy of both the API and CSS files as they currently stand. Many thanks