Yeah, Gronk
Based on the fact that one can easily add 600 kgs of water and other crap to that, makes it around 2 tonnes on the road.
Taking a reasonable approach that the towed weight should not exceed about 2/3rds of the towing vehicles weight, that puts the weight of one's tug at around 3 tonnes ...
It will suit some very well, but not for this little black duck ...

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