Just inspect the rivets for obviously damaged solids that have a tipped, ground down or missing heads that might become an issue later on. Some boats were never abused in a manner that you would have to re-buck any.
My SS needed about 300 replaced not from abuse, just for reasons I can't explain only guess about where the heads would fall off easily. Then my Chief only a few needed replaced and a few more that were needing re-bucked. I didn't do them all only those that needed it. In all reality only the seams should need the epoxy sealer on them especially the keel area. You can put a dab on the rivet bucktails "in the field" but don't worry about the ones in the ribs, the product will not be able to seal them between the rib and the hull.