Dear,sir.
I am interested about your project.
I have experiences that have worked with job similar to this.
Your project is clear for me but I have a problem to ask you.
I need to know about that I can do back end to another site for your project or I have to make component that you want.
I think that I can help you satisfactorily.
If you are interested to me, I hope to chat with you to discuss about this project in detail.
sincerely thank you.