I have almost everything you'll need to add comfort access to your E9x minus the key and programming.
-Driver and Passenger CA door handles in Jerez Black
-Driver and Passenger door wiring
-Control Unit Passive Go PN: 61359134708
-3 interior antennas and 1 bumper antenna with bracket
-Antenna wire pig tails
These are all the parts I believe you'll need to complete the swap, minus the additional wiring.
Here is a walk through on it -
https://www.e90post.com/forums/showthread.php?t=1211167
You will have to get in contact with Dumitru to add the VO to your car as well as change your vin to show CA so you can get a new key from BMW.