Alright folks. This was slightly more involved than needed be since one screw wouldn't budge but fortunately, it was one of the mirror screws and on the hinge. Make sure you have the right screw driver. Foam was none existent. Nothing but black dust. But, everything went well and now this S2(A?) is working as well as I could expect. Super clear finder with the split image screen. Everything at infinity is in focus and bright to see.