desktop Application

this is the requirement

https://docs.google.com/spreadsheets/d/16rK2GbQh00jPHVFF5_OKbA7t5s_eDAvbM-q6HbaiuUw/edit?usp=sharing
Tell me
1) how much do you charge
2) how long will you take
3) if you are able to do a simple demo on video to show me that your solution will definitely work