OFDM- Matlab-Simulink Simulation and code required

We need to implement the method with the help of matlab/simulink in reference (1) for single-path ( given in [login to view URL] ) and multipath (discussed in [login to view URL]) and compare the performances in both situations. Reference (1): Z. Zhang, M. Zhao, H. Zhou, Y. Liu and J. Gao, Frequency offset estimation with fast acquisition in OFDM systems, IEEE Transaction on Communication Letters, vol. 8, no. 3, pp. 171-173, 2004. I need this implementation with in one week. I have a budget of aprox $100. I need some one from Electrical/ Telecom Engineering who has good understanding of OFDM and Matlab. Please don't your time if you don't have the required qualification.