Trinkets - Yes but which ones?
Start with Soldiers or Cavalier and adjust from there till you’re comfortable. They’re easy to get thanks to the megaserver stuff. I don’t recall which Temple Karma vendor has what so you’ll need to wiki.
This is of course assuming you’re running a power build.
Valkyrie armor/weapons mixed with Emerald trinkets is probably your best bet tbh. In wvw, toughness (you’ll get tough/pow/prec from emerald) is good for mitigating some aoe etc but wvw is also very condition heavy so a bit of extra vitality will help against that as well (call is vit/pow/fer). Using pure cavalier will be a huge waste w/o some precision and fury. You’d be better off going pure Soldier’s (PVT). I think Valkyrie armor/weapons with Emerald trinkets will probably give you the best balance of stats w/o going full Celestial. Good luck.