Just a thought I shared with a coworker. In the "Alright" video KL is dead. In reality, his shoes are wrapped around that pole he's rapping from and in the spirit his ghost is there and still in the hood, floating among his people. The cop shooting him is just a flashback.
When KL speaks to Pac on TPAB, at that point in the album, he's dead. When he can finish his poem and speak to Pac, it's because they're both ghosts. When he finally loves himself and is going to change for the better, he gets killed and dies a martyr.
Maybe I'm late, but I haven't kept up with the convo.
I feel you but I think k. Dot is talking to Pac throughout the whole album, it's just broken down for the sake of the story for the listener. On top of that, if they're both dead then how do we explain Pac disappearing at the end when Kendrick is talking to him "Pac.....Pac..........PAC"?