are the parts from all 3 models compatible with each other like the battery case and screw wholes I have a 1396 model but I brought it with me from another country than where I'm at right now so its sim card slot won't actually work so since a1395 cases are cheaper I thought of getting that and move the parts into the new case but are they compatible and are the batteries interchangeable if they are I was thinking of finding a good condition iCloud locked a1395 and just replacing the motherboard with the one that I have would really appreciate it if you helped me out couldn't find any answers on the web