What is the SSS trigger? I don't think I have heard of them.
here ya go.
http://www.sharpshootersupply.com/Fred and Lisa are good people to deal with, and they have whatever you need for your Savage/Stevens.
I have 4 SSS and 1 RB Sav2 trigger on my guns. I dont really think you can go wrong with either one. I did find my Sav2 easier to fine tune the adjustments though when getting as light as I could.
If I were buying one new I think I'd just get the SSS. There's not much more gained for the price difference of the Sav2.
Once you use either one of these you'll wanna throw your accutrigger in the trashcan

FYI, once you get it adjusted, be sure to put some nail polish or med strength locktite on the adjustment screws so they dont loosen. I had 1 SSS trigger do that till I used the locktite.