My neighbor is a local cop and he says the california law on doors is if it came with removable doors you don't need them but if it came with non removable doors you need them.

A few turns of a wrench they are removable though right

No matter what your rollin the dice just the way it goes. I say rock it with no doors until you have a problem with johnny law

This is the correct law on doors.  Ive talked to CHP and local police and IF your vehicle comes with doors that are bolted on then they must remain on while driving on public streets.  At the moment I dont have a rear bumper on and the police say I must have one on since it came factory with one.  This I thought was rather silly but cali laws are very strict.  I did ask about half doors and there is nothing in the law preventing them since they are for the most part factory.  Even tube doors are not considered legal here.