Continue creating custom building order system

I am developing a online application that allows for a customer to order a customized sheds and get it delivered. There many small details to the scope of work and it will take time to understand everything to get a quote. So this is my suggestion. I would like to separate the project into different parts. For each part we work together to customize the HTML for each page of the ordering process. After you have gone through this process (working with me to customize each html page) you will have a very good idea of how the programming needs to be done and you will be able to provide an accurate quote. I have already started creating the HTML for the ordering process. So it is something we can review while we are discussing the scope of work. Most of the programming involves 4-5 different roles (admin, dealers/sellers, delivery drivers, accounting) that assigns different tasks and notifications to different users. There are 2 things that are a bit more complicated. 1. During the order process, a user selects options to build the shed on page 2, but on page 3 the user will drag and drop icons onto a blank diagram to build the shed. The icons represent the options that were chosen on page 2. Then this diagram is inputted into a PDF to be downloaded. 2. During the delivery process, the application must be able to calculate the distance (miles) from two locations. If the locations are 50 miles are less, the delivery is free. If the locations are more than 50 miles, then there is an extra charge of $3.00/mile. So if 2 locations were 53 miles away, the cost would be: $9.00 (3 extra miles X $3.00/mile = $9.00) The full scope of work can be viewed here: [login to view URL]