Would anyone know the weight of a 122 wagon unibody ? Engine,transmission, suspension, doors, all glass, interior REMOVED. Would 3 or 4 people be able to lift it from jack stands onto a trailer ?

Based on direct experience - admittedly with a 140 not a 120, but there can't be that much difference - I'd wager you're somewhere in the neighborhood of 1200 lbs with the bare unibody. Those 3 or 4 people are going to have to be pretty darned healthy! :)
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Gary L - 142E ITB race car, 73 1800ES
BlueBrick Racing Website
YouTube Racing Videos

Way back in my college days, I could lift the front of a VW while someone changed the flat tire. The tire change had to be quick, but it was doable.

The Volvo wagon weighs a lot more, AND you want people to walk around with it? Perhaps a dozen guys or so. It is still going to weigh about 2,000 lbs.

You could try lifting the front end youself and see how much effort it will take.

Klaus
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My name is Klaus and I am a V ♂ lv ♂ holic

Make it a challenge for your local gym. Supply high protein drinks in lieu of beer......................

If they are piano movers, probably so. Office workers? No way!
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George Downs Bartlesville, Oklahoma