It's a nice rifle. That being said if price isn't a concern then you might want to just bite the bullet and get the SR25. Especially since you already have a SR15. It's a tough choice once you take out the money concern. In the states many consider the Lewis Stoner rifle to be the ultimate. IE LMT monlithic upper with KAC ambi lower.
Here are my LMT rifles. On the left is a LMT mrp with 16" SS bull barrel on it. On the right is the LMT MWS (308) with the 20" SS barrel. It gives you an idea of what the LMT looks like with the 20" nd compared to the 16" 223 version. Sorry iphone pictures only, I know the quality isn't great. The LMT MWS has an ambi mag release on the left side which the mrp doesn't have. The lower on the LMT MWS is the same as the KAC minus the ambi bolt release of the KAC.