Crazy alignment problems

The rear track has nothing to do with setting the toe in or even aligning that car. All dusters had a narrower rear track than the front end. All you need is a couple of measurements on the front wheels one behind and one in front subtract one from the other and that will tell you what your toe in or toe out is. You lift the front end on one side and you crank the tie rod to bring that wheel in or out as needed.
As much thread as you had on those tie rod ends on that one side that is the one I would crank on first so you can bring those Wheels closer together on the front.
it has to do with eyeballing the toe-in. If the tracks were the same you could sight frt to back and/or back to frt to get it close. i guess i have to spell it out in gory detail. Point the frt wheels straight ahead with steering wheel centered(lock to lock). This may involve adjusting the tie rods if they are too far out of whack. Since the track is wider at front, if you extend a string line , from edge of front tires/wheels backwards and rear wheel/tires forward the string lines should be parallel to each other, and be the same distance apart right side to left side.
Now you could do a similar thing by just working with the frt wheels, if you could fashion a caliper to measure the distance side to side on the leading edge of the wheel comparing it to the distance side to side on the trailing edge of the wheel. I think this is harder. because there's stuff in the way. But to each his own.