Not sure they're worth much. Why are you getting rid of your axles? Are you un-happy with them? I've had a lot of success with the IFS after I did OME lift, and tossed the front sway bar. I think straight-axle is WAY over rated... just look at quads and side-by-sides - all IFS front AND rear.
Comparing a quad to a 4x4 truck is like saying apples = oranges. There is no comparison and if you think there is no reason to swap out yer IFS to a SAS then you don't wheel hard enough.
2 main weak point in the Track/Kick IFS... The aluminum 3rd member and the CV shafts... Both very well known not to stand up to lockers and larger than 31" tires (especially in reverse and hard on the skinny pedal)
As for swapping in the Sammi axle... I say go for it. It's not really that hard to do and all the steering components from the Track/Kick will bolt right to the sammi pitman arm.
A freind of mine has done the swap from the track/kick IFS to the Sammi SAS and it looks like Suzuki had it in there minds to do this in the drawings. If done right is looks stock with Sammi leaf springs and fits like a glove.
Really the only thing you have to make is sprin perches to the fram and then cut out the coil buckets from the frame and add some steel to that area to give it back the strength.
I say if ya have the means... Go for it. Once you do the swap you will wonder why ya never did it sooner.
Kelly