I'm roughly 80% done with my own vanilla refits for high poly SAM. Gloves and boots are done, but there are a few armor and 1st person models left to do. My refits will be added to high poly SAM as part of the installer in a future update. Making the armor high poly would be very time consuming since it also requires redoing the weights.
At the same time, I was also working on a "new" high poly hand mesh with fingernails. It looks much better than my current one. This is a screenshot of the refitted Whiterun cuirass (same mesh as Stormcloak's) with high poly SAM body and the new hand mesh.