I bought a 16 foot Peterborough with I think a 1979 50 mercury outboard with thunderbolt ignition.I want to find out where the s/n # is and what the value in canadian $ is.The engine has 125 compression in 3 cylinders and 120 in the bottom cylinder and runs perfect as if it were new.Also how do I find out about Peterborough boats when there is no Peterborough website.Who is it made by????Thank-you for all your help folks.