Ipad app to support a website when offline

I need experienced iPad APP developer, who can develop an APP that will cache the contents of a specified website - including video, images and other rich media (I will ensure any additional media is iPad compatible) The APP, must be able to sync a local copy of the website, so that the site can be browsed and used in its entirety when off line, with no mobile or wifi signal. The App must allow for updates made to the website, to be synced when the iPad has an internet connection. You must have previous experience writing iPad APP. This project is currently only speculative, as myself, and my client are to approve final costings.