You mean a couple of body builders.For the window, a couple of builders' trestles and a broom handle or two, ideally with a bit of metal pipe/scaf slipped over it. Set it higher than the window ledge.
Making big loops of rope or using slings can help carry it a few inches off the ground, hung on the shoulders
I've got a doctor's note.
If it really cannot be safely carried/craned into position then an alternative is to have it in two sections and using plates bolt the two sections together.
Hire a crane mate, someone could be killed.a 6.8m steel weighing 367 kg
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