Hello,Just bought a 1980 Sandpiper. Here are the questions I have:1 The trailer has 840 pound tires on it, which need to be replaced. Is this the correct load rating for the trailer? Seems a bit tight for the boat weight + trailer2 The trailer is pretty solid, but has unusual construction. It has coil springs (a bit flattened) and shock absorbers (they are GONE). Anyone have a similar trailer? Did you ever replace the coil springs and or shocks? If so, what parts did you use? If you have an original trailer, I would appreciate a pic.3 I have a few nicks on the boat. I would like to repair them, and make the repair seamless. My boat is beige. Is there anyway to buy gelcoat and get it colour matched?Thx for your help