Looking for some nj help

Hi everyone I'm located near fort Dix nj I am buying a 200 4r from art Carr in the next week or so. I have a turbo 350 installed and it is great, but I'm looking for overdrive. So is anyone around that would be willing to help out or recommend someone that may not charge an arm and leg for the installation. If someone is willing to help I am willing to give them the turbo 350 along with some cash. If anyone has any suggestions let me know... Thanks everyone..