I'd like to stick with DAs for now.
I'd agree with that.Personally, I wouldn't get another Ruger with your collection if it had to be a DA.
Ruger only makes so many DA revolvers and you already own one of most of them. It sounds like you already know what you (don't) want.I believe the Alaskan is only made in 2.5" barrel? Much too short for me!
I'd like to stick with DAs for now.
You need a good four incher. Standard Redhawk and/or GP would be worthy additions