My 120 (Recently weighed) disposable load is 266kgs. So two big guys @ 100kgs plus baggage min of 30kgs leaves 50ltrs fuel. Reminds me of the Canadian bush pilot persuaded by two hunters to load two moose from their camp because the pilot last year let them bring two moose. As they staggered from the wreckage on a gentle slope, one said "where are we Fred?" "About a mile further than last year!"