I'm probably sounding a bit like a broken record on this subject, but I think the pads from NECG are extremely nice. I have a friend who had the NECG pads put on one of his shotguns, they look fantastic. The Stock Dr. (aka Dennis E. Smith) installed the pads and as always did a bang up job. I would put the "orange" NECG pad on your Miroku (nice gun by the way). Silvers are expensive (the last one I bought was over $75), they are fitting for a higher grade gun, I think the NECG or the Pachmayr "old english" would be the pad of choice for this gun. The Silvers reproduction pads do the original article very little justice in my opinion..none of them seem to really look "right".
Dustin