Ron, I have done it as I have had to replace the hinge. I would just take
the side cover off and with a scribe or nail, scribe around the hinge to mark its present position. Don't worry, only you will know that there is a mark in the paint there. Now slightly loosen the bolts that are attached to the body
side of the hinge. Open the door a few inches and lift and hold while the bolts
are tightened again. Now try the door out. It won't take much movement up
to get it all aligned again.
As a note. I think the next time I have the side covers off of the car I'm going
to scribe the hinge on both the door side and the body side. Because I know
the doors will sooner or later move. This way I can always get them back to
where they were.
This probably should be a good idea for all Viper owners. You'l thank yourself
later down the road if you do.