Just got a 77 sst 340 kawi/sno-jet. would like to get a snojet cover that is a correct fit for this sled, does not need to be NOS, also need wear rods for the skis. I see denniskirk has wear rods but for the 78-82 kawasaki snowmobiles. Does anyone know if those wear rods would work on my 77s skis? Anyone that could help with these parts would be great. Thank you.