The butt pad is almost certainly an aftermarket adjustable one that many competition shooters used. The raised position as shown in the seller's picture was normally used for the prone position. The pad was usually dropped down to it's lowest position when shooting standing.
Finding an original trigger guard would be very, very difficult but there is no reason why an alternative close copy couldn't be made by a good machinist. From memory, it's basically the same as a Sako AI .222 without the extension for the magazine floor plate.
Bookmarks