A mechanic wants to start sending me fiberglass jobs and has one for me to do but I am not sure if my pricing is correct. He has a 1990 4winns bow rider that needs the transom replaced. He has already removed the engine and transom assembly and it is ready to be replaced. I am figuring $500.00 since I do not have to remove any hardware. Does this sound to high or to low or am I about right?