Ignition parts are same as Johnson/Evinrude, available everywhere.
I had the Sea King version. At the same time, I had a Johnson TN-xx. Both the same year and same horsepower. Same lower unit and propeller. On same boat. But the Gale Sea King would run circles around the Johnson.
No such thing as a carb kit. If you need a float, I use a Sierra 18-7208 (mercury) float. Grind the top dome (only) off and drill 3/32″ down through the center. Good for another.65 years.