Where I live, shark bites are not code when they are hidden in a wall, they can only be used where visible. You could swap to a pex or reuse copper.
Looks like the brass 90 needs to be replaced to that wood, then the shower head nipple screwed in. You should be able to splice in copper to the existing run pretty easily. I'd use the fire blanket material so you don't melt things. Otherwise a pro plumber could knock that out preeeety quick (piping wise) the patch for the tile, you may need duraroc and a backer 2x4 chunk to attach it to, then waterproof/mud/tile.
(Topic ID: 315438)
