I guess it depends on what your time is worth. You could spend a couple of days trying to rebuild one or you could get a good used one from someone that is going to throw it away. The truck drives well without one and good used ones are cheap. Your choice.
One thing I noticed is that you have negative toe in on the right and + on the left, so the rear wheels are pointing right and it might be crab walking a bit. Check for bent or misadjusted control arms on the rear if you have them.
X2 on the locktite.
I didn’t know that the UAW represents mechanics. I was IAM (aka IAMAW) while I was turning wrenches. Now the UAW represents graduate students and teaching assistants at the university who don’t know which end of a wrench goes where.
I’m sure the smog police have better things to do. There was a guy in my cruiser club that worked for CARB (CA Air Resources Board) and they went around busting smog shops that took bribes or made mistakes. Taking a payment for falsifying a smog test is much more serious than being ignorant...
2F distributors and igniters are petty much the same from ‘79 and up. It should not be hard to fine one. Post up a WTB add in classifieds or maybe you can trade your GM distributor for a late 2F distributor.
X2 on it probably will not pass visual on the smog if the tech knows what a GM...