can you polish the boat with wet and dry paper with brasso and the use the buffer on the anglegrinderwill it harm the boat?
Yes, toll booths do take nickles.they DON'T take pennies though.
Nickels are legal tender - whether the machine handles them or not is irrelevant(The machines are almost all very old, so they jam.) In some areas you can pay tolls by electronic pass - it's easier, it's faster (you slow down, you don't stop) and, if you're traveling on busy weekends (or in bad weather) it can save a LOT of time(You cruise through the pass lane and smile at the 2-mile-long backup at the toll lanes.)
Depends on what kind of a finish you want You can use a fine wet/dry sandpaper to get the surface corision off and then go to an Aircraft Supply and get an Aluminum polish for aircraft You use a wax polisher (or by hand), put the paste on (it will look like a wax paste), you buff until it is black, then take a rag and put common household kitchen baking flower on it and rub it off with little effortIt will leave a mirror finishThen if you want, a good wax will keep it looking that way for some time.