96 tahoe 4x4 6" lift auto to manual change over..?!?

so i have a 96 chevy tahoe has the vortec 4x4 4 door 6" lift with 35 12.50s on it i havnt yet seen a manual 96 4x4 4 door tahoe my gears are turning...

i have a 95 single cab short bed chevy that has the 350 tbi motor backed with a 5 speed manual trans and its a 4x4..the 4x4 is on the floor not push button...

both run and drive no issues i want to completely swap both over

now my tahoe is 350 vortec 4x4 thinkin it has the 4l60e trans nothing wrong with it ...(YET) it a push button 4x4

im lookin to make the 96 tahoe a manual and also to convert the pushbutton 4x4 to the manual on the floor shift 4x4

whats to know? i need some input or possible any problems i might have...i live in phoenix az and there is emissions and being a 96 it has to be pluged in obdllany and all input is appreciated...!!  
drive it like ya stole it...\m/