I painted my 74 Tsunami the same color as the original hull,"Red"
I actually had my niece photoshop a picture of the boat,in several colors,but the Red looked the best,in my case.I also figured that if it got any dings on it,that they wouldn't show as much.
In the end,I love the red.Everyone who sees it on the water tells me they can't believe how far away that they can see it on the water.They mistake it for a coast guard boat.
Check out the two part Urethanes from Epifanes.Some of them,like the red and mustard are very close to the orig Seacraft colors.
Epifanes,is a dutch co,that makes a very high quality line of marine coatings.
The two part urethane is similar to Imron,and is extremely durable.
It's available from several distributors,like Merton fiberglass,Jamestown Dist,Hamiltom Marine,etc.
http://www.epifanes.com/home.htm