How much should I quote for developing a custom Finite Element Analysis (FEA) program in Fortran?

Blue asked: The FE program should handle 1D, 2D and 3D linear thermal and structural problems. The elements should be linear: line, triangular, quadrilateral, tetrahedral and hexahedral. The company requesting the development will own the source code. They are a medium size engineering company.

I have a PhD (May 2009) but extensive experience in FE [...]