Hey there
I had a new 75 K5, blue and a new 76 K6, red, to replace the K5 a cousin crashed on me at 9,000 miles.
I put 45,000 on the 76 before selling it in 83 to help fund building a school bus to live in a few years. At 15,000 miles I put in a Yoshimura 811 kit, 3/4 race cam and 3 angle valve cuts.
My hound Cody had 35,000 miles on the 76 with 5 cross country trips in 3 years.