I found this clip on the AWM website that may be of interest. The first couple of minutes are devoted to a crew of five manhandling a gun from towed to firing position, and back again. I was particularly struck that it needed four men to take the weight while the wheels were replaced in turn. https://www.awm.gov.au/collection/F03705/
Nice. Interesting to read about the use of the 6pr carriage for 2pr guns. I've read about it somewhere but hadn't realised that the Canadians had built some (I think that's what the MLU post implies).
The Wikipedia entry has a picture of a surviving 2-pdr on the 6-pdr carriage. Nice picture but a pity such an atypical version is so prominent. Looking for something else I stumbled upon this pair of pictures from Malaya of what appears to be another atypical 2-pdr on the Mk1 carriage manufactured by Vickers. MALAYA. AN A.I.F. ANTI TANK GUN CREW FINDS AN ABUNDANCE OF NATURAL MATERIAL TO ASSIST THEM IN ... MALAYA. A MODERN ANTI TANK GUN, WITH AN A.I.F. CREW, FIND CAMOUFLAGE EASY WITH THE ABUNDANT ...