All of what you stated and to use the stock kawi pole bracket you need to measure the inside width of the bracket and the width at the pole pivot hole to figure out how thick of spacers you need to center the pole, take the difference between the 2 numbers and divide it in half-the thickness of each spacer needed.. I can't remember how thick mine are, like 3/8" or something..
I was able to cut my stock spring and rebend the one end that pushes on the pole to make it work, I am not sure how a SJ one would work since I never had one to try. The way I did mine it worked great during the mockup.
You have to also modify the upper bracket on the left side to get the strg cable out that side to work properly.. I am waiting for my friend to get my ski painted in the next week or so then I will get assembly pics.. he is dragging his feet and I am chomping at the bit! I am lucky and have access to tooling to make my modifications and a couple friends that are aluminum fabricators.. Only costs me mechanical work in trade for their skills...
The $120 for the pole is a decent price.. excellent if it comes with the chinpad and turnplate...