I really don't know if the rails are the same distance apart. I guess I will find out. I know that Checkmarks put a Polaris skid in his Kawi, and if there was an issue, I'm sure it would have been mentioned...if not exact it's gotta be pretty close. I also recall reading something about wheel spacers, I guess I will see about that too.
I ended up picking up the suspension in the first pic (from a '93 Trail) for $100. It's 16" wide, and my tunnel is 18", so like Checkmarks said I will have to add 1" spacers. It's missing one idler, which will be pretty easy to get. I plan on doing some test fitting tonight. If it's true (I don't think that the advice I received is false in any way) that I am able to use the front skid mounting points on the Kawi and just drill new rear holes, this will be one of the easiest suspensions mods I've ever done on a motorized toy.
Thanks for all the input from everyone.
On a side note, my engine gasket set should be sitting at home when I get there...Hopefully I have this sled back in the snow again soon.