Coffee. The DHC-6-100/200 max gross is 11,579 lb/5,250 kg and normal empty weight is around 7,275 lb/3,300 kg. The DHC-6-300 max gross is 12,500 lb/5,700 kg and normal empty weight around 8,050 lb/3,650 kg. But empty weights vary considerably! Both have a max landing weight limitation (which I can't remember).
The Twotter is not in the same speed class at the LET and as the LET exceeds 5,700 kg is not directly comparable. The LET will require ATPL and two crew and an approved System of Maintenance, after which maintenance costs will be higher than the figure quoted by the Phils operator.