I have understood the requirements and it should not take more than 50 Man-Hours, so please let me know, if you want to start from tomorrow, I will assign you a dedicated team lead.
Please start the chat thru' private message board to discuss more in depth, so I can give you my high level understanding to make sure that we are both on the same page, I can then also revise our bid.
Look forward to hearing from you.
Regards,
YK
LEADconcept