i know removal companies use such a thing for filing cabinets or fridges, but the max weight is 150 kgs, and the bottom step where the item sits, looks a tad too small for my liking, and then theres the ability to pull 150 kgs aprox up a set of stairs, i would still get the carton of beer and a few mates.

*the guy who gets to go at the bottom end, and potentially gets squashed, gets the extra beer for danger money.