Web form - (questionnaire) with the Signature component

Looking for an individual or group for long-term cooperation on various projects for clients. All projects would be written in PHP using a MySQL database. The project must allow for multiple languages. You'll write in English, but I will keep you yet translated into my language. It is also desirable that the responsive layout. They must contain registration: the company and users, and various rights approach to users. So we also need admin background. The first project is to produce a web form - (questionnaire), which consists of 18 pages. MySql database contains approx. 710 fields. depending on how organize entries. It consists of questions of type checkbox, radio, select, text, multitext, auto complete text, etc ... On the one page, we need auto save every 5 minutes. On one page only! All pages need an option that the user can not leave if he did not save. The specialty of this project is that it requires a signature component. At the end of each page is the signature or two. Solution for signature must work with one of the recognized signature plate as Wacom or Signotec. For Signotec I have the API and I can send. If you have a solution for another Signature tablet we will first check whether it is for sale in our market. Upon successful completion of the project will be upgraded by the user calendar for each user which will write aside from the events of the first project. In the calendar, we need a different event categories. For example: holiday etc ... Due to the daily coordination it is desirable to reach you via Skype at a time between 5:00 p.m. to 11:00 p.m. GMT+1 now - and GMT+2 after 27/03/2017. Practical presentation of how the application to work I can introduce you to my PC via a network connection. This will help the best way to understand what the requirements are.