you need 7250 "season total earned" honor before you can buy weapons id go with both trinkets then weapons. after that the jewelry and then starting to replace your crafted gear. Dont forget you can spend conquest points to fill in some caps as you can get 1800 your first week so u can use that on 1750 cp items ( shoulder,gloves,belt,boots,trinkets ) or you can save it up and spend it on major piece like helmet,chest or legs next week. also remember to do nalak & sha if rng is strong in you.
funny note: if you have a healer or tank or you are get fast dungeon queues as dps they are way faster than bgs for honor grinding. if you do end up with either long bg or dungeon queues dont forget to go to ksangarang wilds and kill those opposite faction npcs, they give you like 800-900 honor in total and have a spawn timer of 30ish minutes.