Welcome Martin,
More information about choosing the most suitable combination can be found on the “GP Cheat Sheet” tab towards the top of this page or via this link https://fixhepc.com/forum/forum-gp-cheat-sheet.html
A quick summary is that you willl need to know your genotype, fibrosis/cirrhosis level and whether you have treated previously. As a gt3 your best options are Sofosbuvir/Daclatasvir or Sofosbuvir/Velpatasvir but the duration of treatment will depend on the extent of fibrosis and any previous treatment experience.
Are you currently under care of a knowledgeable specialist or doctor who can make those decisions and write you a script? If not then you may want to arrange a consultation with someone local to you or if that is not a suitable option then you can use a Skype or similar type of ‘virtual’ consultation with a telehealth provider like GP2U https://gp2u.com.au/new_to_gp2u.html or Monkmed https://www.monkmed.com/redemption/ for the initial diagnosis and prescription and just use your local doctor for the minimal monitoring and testing required while on treatment.
There is further information in the”Home” and “Getting Treated” sections at the top of this page along with various member stories in the forum section. Hope this helps and ask away if you have further questions.