Everything except the rear driveshaft should cross with the TOD Trooper, and the tranny stuff with any 4L30E Isuzu (Trooper, Rodeo, Axiom). The rear driveshaft I've heard is the same as the Trooper RS, but don't have confirmation. Considering that the Trooper RS is even more rare than the VX, then it's unlikely you'll stumble across one. Fortunately driveshaft repair or a custom unit is pretty simple and available about anywhere.
As an FYI, the Axiom's TOD is different from ours in that it has a big solenoid to disengage for 2WD operation.