Just FYI in case it wasn't clear; the 8 shooter is a full size Blackhawk while the originals are all 6 shooters on the handy single six, the smallest frame size. These are not hard to find with both fixed sights in blue and stainless but 4 5/8" barrel only, or with target sights in blue only but with 4 5/8", 5 1/2", I think, and 6 1/2" barrel lengths. Here's one in Classifieds with a ton of ammo that just went to auction.
http://www.rugerforum.com/phpBB/viewtopic.php?t=123542
I just shot my 4 5/8" blue single six target model today. It's a fun gun and I confirmed why I like it so, even with 32 S&W Longs.
Which model do you want? I'll keep an eye open.