em8950

I have a 2003 Rubicon full time 4wd and its driving me nuts not being able to switch to 2wd. Warn has discontinued the conversions but i have found some on ebay and other sites as well. Has anyone converted to a later model front differential and drive shaft assembly? I really do not want to buy the parts and find out they will not fit. I am ok with minor modification like welding in new mounting tabs or things like that. I am worried about the length of the drive shaft and the compatability of the axles. i really would like the electronic shift instead of a cable assembly. Any insight or ideas would be greatly appreciated. Thanks, Joe