Free: Contests & Raffles.
The reason there are so many Ruger upgrades is because they're necessary.
Save a little longer, buy a Kimber and be done with it. If you need to be talked into it, then spend the money on the muzzy if you don't have one.
If it were me I would go with either of the beaver tail grip safeties. I find the narrow grip safety highly uncomfortable. As said above the front serrations are great for racking a round in or cycling the slide after you oil itAlso for 750 odd dollars I'd save a bit longer and pick up something like a kimber custom 2. I got a kimber c2 and love it