I've got a CK3510 with the KS66. This is my first year with both, so I can say it has worked well but i have barely used it. However, I have mounted and unmounted it several times. I chose (stupidly) to receive the blower and frame while they were still in the crate. Mediocre instructions and very heavy! But it gave me an intimate look at how it all works.
My buddy helped me and I have done it myself. What I found best was two sets of furniture dollies. Two larger ones for the blower and two smaller ones for the frame.
For the blower, I place the outside edge of the dollies on the edges of the snow blower, just inside the shoes, and then slide the 1x4 on the back of the dollies under the square box portion of the blower unit (just in front of the round support tubes). I do not use the retractable foot. I find this is balanced really well and i can move the unit around with ease.
Then i slide the two smaller dollies under the frame/cradle. Remove the rear shaft, then use one of those smaller jacks to lift the front by the hump, pull the pins and lower onto the dolley. Then, use the jack on the side of the cradle to take the weight off the pins and drop down to the dolly.
Sorry I don't have pics, but there is a guy on youtube with a good demonstration of how to do this with jacks, but he doesn't use dollies so he drives over the frame.
Fearl Bridge Farms