No idea where's best to buy one I'm afraid but I've always rather liked mine. To be fair I haven't used it in quite a few years now as I have other knives to try for a while but after my lekku and a large camp knife a mate made, the MoD is my favourite big knife
And it certainly is big.....and heavy. Did a few minor mods on mine, filled the handle rivets and sanded them down, sanded the square edges off the handle, reprofiled the edge to a scandi grind and ground away the lower part of the hand slip guard (can't remember the proper name for it.....hilt?). I also got a modern cordura sheath for it as the issue one is pretty cack
Good luck with your search