Reviving this thread but I have found an answer. Yes, it can be done!!! As of recently, Max Braun on Twitter has successfully put a Raspberry Pi Zero W and a Raspberry Pi Camera Module into an iSight Camera. You can read his article about it here and his Github Repo can be found here. I am planning to do it for my iSight Camera soon! Just waiting for the parts!
Its pretty easy to do if you use the iPhone battery tool/pryer thing!
How long should I use a hairdryer for?
For the life of me, I cannot get this screw out. I have been using the same screw driver and nothing has been working.