OK, I am going to start going to the shows and keeping an eye out for a stainless New Blackhawk.
I used to hate stainless, but every carry gun I've had has lost most of the blue off the cylinder within a year. :(
The shortest barrel is something like 4 5/8" which is even with the end of the ejector tube. Back in
the day these were "gunfighter models." This is what my .357 BH has and I like that length fine for everyday use.
I've got an old Vaq .45 in 5.5" and honestly I'm not sure I like that length now. If I had it to do over I think I would go with either the gunfighter version or the traditional original 7.5". I thought the 5.5" was a good compromise, but some compromises are the worst of both extremes.
Just keep in mind the .357 BH is way overbuilt (being on a .44 mag frame) but the new Vaquero somewhat less so.
I wish I could afford a dozen or so Ruger SA's so I could try out all the combinations :)