It might help for you to look at my "Purchasing Parts" page on
www.SkymasterUS.com for dealers who part-out Skymasters, and their phone numbers. I have found that J.T. Evans @ 800-421-1729 is good for landing gear and fuselage-sheetmetal stuff, and Commodore (Don Nieser) @ 405-722-4079 is good for just about anything on Skymasters.
Ernie