Well 12 rounds a minute was the stated amount, yet it was recommended to stick to three or four to stop men rushing and wasting their shots. From a morale perspective it was far more devastating for an enemy to lose alot of men all at once rather than a few here and there. And with the high amount of recoil which increased shot for shot I'd say a recoil would work well ingame too.
Another thing I garnered from my book was that 1400 meters was the sighted maximum range,yet still a near impossible shot. 750 was the range a regiment would begin firing and 275-360 was the most effective range.
Also it was only the NNC NCO's that were issued firearms which will certainly simplify that aspect,I'd recommend equipping them with the Snider-Enfield.
Also the artillery involved was N battery,5th Brigade using 7 pounder's, these were light field guns ill-suited to the terrain and so were mounted on heavier 9 pounder carriages.
That's what I found out this morning,just leaving it here so it can be found nice and easily.
Oh and I never really looked that closely at the jacket in the below picture but that is the tunic of the Frontier Light Horse officers, the enlisted men should have worn a similiar tunic but preferred civilian dress.
Spoiler
Below is what the enlisted men should have worn...
Below is what they did mostly wear...
So I'd recommend using both for the troopers.