I eventually managed to pick up the Plastic Soldier Company artillery set. Well worth it as you get 2 gun carriages and 3 different options. For my first model I went with the 1943 76mm Infantry gun. This is a very nice kit and goes together quite easily. I did 2 head swaps on the crew to add a little winter variety as they are dressed in the summer uniform. I was surprised that the heads from Warlord did not look out of place. The PSC figures are slimmer but not as noticeable in the crouched position.
I also managed to complete a command set from Warlord games. This gives me a second Senior leader, a spare Junior leader, medic and a radio operator. These will always come in handy.
I've now only got a handful of figures left for this collection. There is the second artillery piece awaiting basing, 4 spare infantry figures from the last of the plastic Warlord figures. I have ordered a T34/86 to add to the armoured element. After this possibly a mortar, armoured car and a unit of scouts to complete the force.