Just to be pedantic Frank, this is the version specific to the German Mountain Troops; the one used by other NATO nations including the Brits was also the one shown here:
Oto Melara medelo 56/ Artilleros Malvinas-Dukel 01037/01038
and this is basically a build blog. Replaced of course in Brit service by the Light Gun.
The Mouse House version, should it actually be resurrected, would be suitable for Brit versions and others.