For CL buy a 4 door locking kit from Maplins, and fit dead easy, works from remote of alarm as well if fitted.
I have never had any trouble with these in around 6-8 years of using, just obviously don't fit one motor, this will be master in each door, so each door will lock/unlock from the button or key, or remotely with alarm if fitted.
As for windows are the doors the same as the 4 door or 2 door version, they should fit, easiest way to wire is through a few double pole switches, easy enough.
tabetha