You would be better off to keep all your questions and the answers in your one thread as the subscribers will be notified when you make a post rather than having to check the SC forum for new threads.
I've not seen any boat paint job nearly 40 years old that is in good shape :lol:
By the time you sand the entire boat, feather out the scratches you would have the whole boat stripped, that's why most of us stripe them bare. That and having a 30 year old chalky base for fresh new paint doesn't set well either.