Thank you for your advice, I know you are just trying to help but due to client confidentiality I cannot share project information freely on an open forum.
We have a set fee for completing the project but the fee will be split between the team so is dependent on the number of people in the team (we are looking for 5-10 people). This will be advised in advance of the project starting once we have the team in place.
If you are interested in working on this, send me a message and I will give you as much information as I can.