Check the 14-3, Quite a few of those were "Double Action Only". Still great guns but little different purpose.
Put Pachmayr grips on your SP101 and you can shoot 357 magnums all day long. Ruger's factory grips are a killer because they allow the trigger guard to impinge upon your middle finger, causing great pain.I have a Speed Six, and a blued 4" and 6". Plus the GP100 in 327 Fed Magnum. And the SP101, which I really enjoy shooting. Being a sissy, I use.38 spl instead of 357. But I may weld a crow bar on one of the guns.