Help needed to piece it back together

Is there someone here who’s familiar with the 1999 Tahoe 5.7L who I could maybe video chat or send photos to, to help me piece my truck back together? I was locked up and while I was some dumbass tweaks messed with my rig and now it’s not running and I wanna get it pieced back together and up and running but my mechanical knowledge is self taught and only so extensive. I’d be eternally grateful.