Google Docs Piechart Gadget

This job has two parts: A)At a minimum, we need a pie chart where each pie slice links to an assigned page. This chart must be a gadget for Google Docs spreadsheets (similar to the built-in Google Docs chart) that the user would create on the Google spreadsheet and then embed into a WP page. Please provide an estimate for just this part. B)Additionally, we would love to have another gadget that would allow for filtering of data. This gadget would include a pie chart, a spreadsheet, and an incremental search. Reference [login to view URL] or this movie ([login to view URL]). This too would be a Google gadget. Please provide a quote for this as well. Flash or JavaScript implementation, just as long as it's hosted on a webserver -not an SWF end-users must download and manipulate. Open Source is preferred. Please provide a quote for both A and B. Thank you!