If you're going to do Canadian troops with the Ross rifle, then don't use the heads with the gas-masks. By the time this type of gas-mask came into service the Canadians had got rid of their Ross rifles and were using SMLE's (for which the Canadian troops were, no doubt, profoundly grateful!). Also the trench periscope is actually a gas warning rattle.
So are you going to get another set so that you can build them the other way? The Ross rifle really got slagged during the war because it was a piece of shit and jammed all the time, or mostly what happened is you got to fire the first round and were never able to clear/eject the empty casing. The truth of the matter was that the Ross was built with precision and with close tolerances, so it was never able to use the myriad of different ammo out there, yes they were all .303 but again Canadian ammo was made to a better standard, so if you happened to be using British ammo that was made to a slacker standard shit went sideways. The Lee Enfield wasn't built to as close/precision tolerances so it would run anything. After this was realized the Ross rifle would get used as a sniper rifle with Canadian sourced ammo because it was deadly accurate.
