I bought the Bell & Carlson stock, here is a picture of it on my 280 Rem. Sorry the picture came out blurry.
I dont remember the exact cost of it, it has been a few years since I got It. I had my neighbor who is a gunsmith order and install it, so I dont know if it was a drop in or if he had to releive anything. I gave him about $200 total, I believe.
Here is a link to get the best price on about any stock you want including the Carbelite.
http://www.stockysstocks.com/servlet/StoreFront
You can get a Bell & Carlson Carbelite for your Ruger for $146 for a black one, $160 for a web one, or $174 for a camo one.