My drivers door hinge is worn to the point that the leading edge of the door does not come flush with the front fender. There was a DIY for replacing the bushings in the door hinge on one of the Ausy sites as they do not have this model Lexus in Australia, they have become very creative in working with what they have.
The other options is to purchase a new hinge, as I did, from Carson Toyota (cheapest place I found).
The problem with replacing the hinge is first having it color painted to the car, then the wiring harness for the door electrics pass through the hinge. So, the door panel has to be removed, remove all the wiring, change the hinge, reroute the wiring, etc..
The SC hinge is probably one of the most elaborate hinges I have ever seen. The SC doors are very heavy and with an articulated hinge, that not only opens the door but also moves it out and away from the body. This is probably from the American Design Studio's (California Designed) perception that all Americans are big and overweight.