I have had no luck finding one for my 75 also. A boat shop quoted me $150 to make me a custom unit. I now have two "WIDE LOAD" signs rapped around the spreader bars on my cage as a bikini. It looks cool and I got the things for free from a trucker friend. I also know of a guy who is useing a bikini from a Scout on his 71 K5. It fits well enough because the scout is kind of boxy and the K5 tapers to her top. There is about a 6" difference between the two tops. Hope this helps