Drawing Tree Website Build

PTI is a small engineering firm that provides consulting solutions. We are looking to create a custom web application for a client but we are currently a little short on resources. We would like to outsource this project. Overview This project is to create a hierarchical website for storage of design drawing, so users can easily find and access drawings on a website. Environment We would like to use ASP.NET with a SQL backend for table storage. We will take care of the user management portion of the site; we would like you to build the hierarchy structure. Details I have provided you with a mock-up of what we envision for the structure. We are open to your suggestions but we just want it to appear like a drill down hierarchy that it is easy to determine where you are and what you are looking at with the ability to open attachments of the drawing itself. (A crude site similiar is Rock Auto, [login to view URL] but we are only concerned with the drill down nature on the left, no cart needed). I have included a structure for Assembly 1, you can assume a similar structure for other assemblies. I would assume that all Assembly can go 7 structures under. This will include Lifting, Handling and Shipping even though this information isn’t provided (Maybe just assume it looks like the Manufacturing portion). Due to the propriety nature of the work, “fake” data has been provided so we will need to be able to modify the SQL backend with real data, please make it clear how tables relate so we can fill it in.