I have owned a 9 ft Old Town yacht tender for over 45 years and she was quite old when I got her. I am now rebuilding her for the third time as I am 70 yo and want to leave her behind in good shape (after rowing her across the River Styx ;>} ). Her serial number on the stem is either 64428 or 164428. It is preceded several inches by the number 9. Can you tell me which serial number is for a 9 ft yacht tender? And, might the build sheet be available? Thank you in advance for any assistance on discovering her history.