Just curious if the 102 Dust boot a split boot? Or a single boot with clamps. Initially I was thinking of getting one of the VW Boots, but they are a split boot and would prefer a non-split boot.
I saw their boot kit and their rebuild kit. $49 for a boot is a bit pricey. Andy Bernbaum's (the link above from Moe) are better priced at 1/2 of that that.
If it's a short term fix you need, pull it apart and lube it with some good quality grease. That will be good for a year on a paved road even without a good boot. If you're off-roading or live on a dirt/gravel road, you'll need to find a boot to fit it.
Was planning to pull the drive line tonight to assess the damage.
At a minimum, as you say, I'm sure some good red grease will do it some good and take some of the noise out of it. At a maximum, I may be pulling out the welder and grinder to fill in some gaps and round the balls on the pin back to round.
(I had to do something similar on the ball-stud's in the zbar about 7 years ago, because I couldnt find a vendor and one of them was pretty much a flattend on one side. Last I checked, the zbar ball studs still round and working fine.)