Your project's posting has caught my attention as this lies exactly in my domain of expertise. To ask a few questions & to gather all the requirements for this project, I request you to message me.
Expertise and skills will be disclosed via chat.
Shall I get all technical/non-technical details via a document?
It seems like an interesting project. I would like to discuss all the requirements with you, so I can mark the scope of this project. Please also note that final estimation will be provided once all the requirements will be revealed from your end. Hence, my cost of development & deadline solely depends on what you reveal (in detail). Looking forward to conduct an extensive chat with you.