Italeri also did a Panzer IV ausf F/ausf G, the long barreled version. That’s why there are two barrels and no schurzen. This variant had the older type of drive sprocket with the bulbous center. I think someone attached the wrong directions (ausf H)
Sounds like the kit is really the Ausf F1/F2/G kit and someone just put the Ausf H instructions in with it. Should get you the 85% solution on building the kit.
i started the 3 figures in the kit each has separate arms so that is 3 lefts 3 rights at least on most people, the sprue contains 4 lefts and 2 rights
so i did a little surgery on 1 guy, but not being a doctor i did not do a great job and the little guy is not happy with the scares so i have decided to put a pc of cloth like a sling over the mess to make it look better