Dear Sir,
I have read your Project description & forwarded it to my technical team lead, who is experienced in WordPress Plugins, so please allow some times & I shall get back to you soon with our precise estimate in terms of time & cost, we can then go from there.
Our current bid is just a placeholder since Freelancer requires it but once you respond us, we can then finalize the total cost & payment terms to move forward.
Look forward to hearing from you.
Regards,
YK
LEADconcept
PS: I had my technical team lead analyzed the requirements & ready to take this project but if you have any specific questions, then please feel free to ask.