I would like to bid in this project as I have experience . My work strategy is to give regular status updates and intermediate version whenever required (if planned). I have experience in designing and architecting screen and application design for small scale and large scale industries.
Normally I will first get enough requirement details and I will give the tentative schedule for design. Once the design finalised I will schedule the actual timelines and effort required to complete project. I will include both internal milestones and final delivery date.
Let me know if you are OK with my process