Putting longer track on 05 mach z

[trailrider]

I have an 05 Mach Z 1000 with a 121" track, i was wandering how long of a track i could go to with rail extentions with out m

ajor work or twisting ? would the skid out of an 01 summit bolt right in or would i need to do alot of modifications ?

Thanks for any help.