AT589M+S tires for 500$ for a set?

Okay so I’ve heard people say that the 589 tires were pretty awesome are the tires I listed above the ones you all were ranting a raving about?
I found a set of 27x9x12 and 27x11x12 set of these for 500 with a set of ITP rims. But the only issue is the rims are for a Kawasaki quad so I’m almost 100% certain the bolt pattern will not match!
My question is should I pull the trigger on these tires Unmount them from the old rims and put them on my new ITP ss316’s then try to sell the aftermarket Kawasaki rims as they are ITPs as well?
The tires look almost brand new they have over whatever a quarter’s height would be in tread left looks like the never really got used!