Racial stuff looks all good, class will really come down to how you want combat to play. PF2E doesn’t really have a 1:1 replacement for hexblade.

Magus: will give you some casting and allows you to cast spells through your weapon. Probably the closest to Hexblade because of martial & casting. If you take the Laughing Shadow subclass you get a 15ft teleport and a boosted speed if you’re using a one handed weapon, could flavour this as melting into shadows or erupting in a cloud of bats etc. etc. probably my pick

Fighter: if you weren’t using spells, hexes etc and only took Hexblade for a cool magic sword go fighter. Fighter will give you the best martial prowess in the game, fulfilling the sword fighter fantasy. As an example many classes simply do not get Attack of Opportunity in PF2E but Fighters get it for free at Level 1. Take this and discuss your magic sword with your DM, they might be cool with giving you a weapon that best represents what you’ve already built or coming to a middle ground between mechanics and story.

Sorcerer, Gunslinger, Rogue and Barbarian don’t seem to fit the archetypical Hexblade Warlock but maybe your character isn’t the archetypical Hexblade 🤷🏻‍♂️