Engine/Transmission (1998.5 - 2002) NV 5600 parts

[V-Metalworx]

Does any one know where I can buy parts for my transmission its a 2000 modle year 6spd 4wd I need to put in sycros and want to upgrade to the 1. 375 input shaft some one told me that parts for the 00 were discon't and I have to change some gears and junk to use 01 or 02 parts I'm also loking for a x exploded view print of the transmission I just want to fix it my self don't trust those transmission shope's that want your transmission and a two grand for a rebuild you just don't know what your are getting any info would be great Thanks