I believe a gruppo or group set general contains rear and front derailleurs, brakes, front chainrings/crankset, brakes/shifters, bottom bracket, rear cassette and chain.
In addition to the things you've mentioned you'll also need a seat post, maybe a seatpost clamp if its not integrated into the frame, a saddle of course, cables, a stem, a headset, and handlebar tape.
I'll keep thinking about it so see if I've forgotten anything.
wow - lots of replies in the time I was composing this message!



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