Codeigniter Form System Project

We have an extremely complex members form/information system built on CI. Your job is to make some updates to it. The panel system has two member levels (basic and advanced) along with a complex admin area in addition to saving the last two forms of each answer. You will have to keep all these things intact along with data and user accounts already entered. Changes are as follows: - Numerous text changes to questions - Numerous changes to tooltips - adding information and definitions. Quite a lot to put in. - A few question additions - adding questions with various answer elements ranging from drop down to text box. - Change various headings/copy to make it more consistent - Change answer options/answer types to a few questions - Change type of answers allowed (example text only) - Change button text on home page - We have one section that is quite long, we'd like a way to save in the middle or split into two. - We also have a few sections that let users duplicate the entry (adding another similar entry, say a business with two contact persons) - this does not work 100% right and needs to be adjusted. ] In addition, there may be some other things (minor). This is a relatively large and detail orientated job. After completion, the client will test and get back to us with further adjustments, so there may be a few rounds of escrow releases. Providers MUST have great knowledge of CI, and have a portfolio to show us. PMB for more.