I bought a 1957 trojan sea queen mercury 75 mark 6 60 hp?

i need to no the spark plugs for this engine there was no plugs in the motor and firt time starting tips after 20 years i bought the boat from a friend and he doesnt no what he did with the original plugs. the boat was in storage in florida and i went to and got it and brought it back to wv. it an all wood boat that needs restored he heard the engine run when he first bought it. i need to know any ifo on this vessel i plan on doing a complete restore on it. it has alot of potential and ive researched the engine including the infamous 50,000 mile test run on lake x in florida. i would also like any paperwork brochures etc. any help would be appreciated