All along the 3 years, the tuition fees will be payable to your home institute and will be the same as for any traditional bachelor. There is no tuition fees for semester 7 in Denmark.
If you qualify for a government-funded scholarship, you will keep benefiting from it all along your curriculum.
During the second year, whatever your status (gvt. scholarship or not) and whether in Liège or Kortrijk, you will benefit from an Erasmus Belgica grant amounting to 100 euros/month. Once in Denmark, you will get an Erasmus scholarship ranging from 300 to 500 euros/month for 2 semesters.