I made 9-meter-wide chairs for my garage. They were built in 45*195 and were of type W. Lifted them up with 2 people. I had already lifted 2 by myself. About 2.70 meters up in the air.
However, we were 3 in the end. And 3 made it easier. 4 would have been optimal as they were extremely heavy to lift up. My chairs weighed well over 100kg each. I think the material cost was about 800 SEK each. But I hadn't looked for the cheapest supplier. The reason was that I wanted to try building my own. Used an insanely large amount of nails on them!