I’ve finished watching the rest of the film by watching the LD and the 1971 16mm print together. Here’s what I’ve found (although I’m sure you all know this already):

“Convlusion” scene comes last in the altered shot order on the 16mm and Italian broadcast, so I assume it will appear at the beginning on reel 3 on the 35.

Nothing changes until the extended SEN scene. The 1971 16mm contains this extended cut. The LD is edited down. INTERESTINGLY enough… The LD has an inserted cutaway shot of the boy when SEN says “Combined Primary Economics”. The 1971 print stays on SEN the whole time.

I went ahead and checked the Italian broadcast and it has the extended SEN scene.

Everything else is the same.

So, apart from an altered shot order in the middle of the film, nothing is missing between the two versions. In fact the 1971 version might have 30 seconds more footage when you take the extended SEN talking to children into account. There you go.

Oh and I might have been mistaken about the translated titles being part of the print in the Italian Broadcast… They also seem spliced in. I know the final shot is spliced in from another print. Someday I may check it out…