On the sights- I've got several older revolvers suffering from the same issue. One is a very nice IJ with a 6" barrel (IIRC, it's the only one I've seen with a barrel longer than 4") and it's BLUED on top of that which is rather a rarity for an IJ in my area. At any rate, the sights are a joke at best. I'd love to use the gun more but these days my eyes are worthless with small sights. I've considered basically using Krazy Glue to try and address this issue without marring the gun, not that IJ's are worth big bucks, but you get the idea. On the larger platforms a "Wonder Sight" can be attached at the cost of one screw hole. Another alternate I've thought of for K frame sized fixed sighted guns with dismal fixed sights is to adapt a J frame adjustable. Means a little milling, but in my Colt Army Special it would mean owning a working field gun instead of a "I used to use that one a lot" gun.
Any thoughts or better ideas?