Dimensional Agility build In need of Advice

[Nosta]

So My Gm(S) have given us the Rules for building Our characters for the new game

Level- 10

Race- 15 Racial point races

Point Buy-20 and +2 To A stat as well as Race Bonus

Alignment- Any GOOD

For Race I was Debating either Half-Elf and using and Elven Thorn-blade and leaf-blade

OR Tengu and Grabbing Wakizashi Prof

For Class I know I need at least 3 level in Horizon walker for D. Door

But for class I am hung up on Unchained Rogue 7 or Slayer 7

Am kinda Considering Un-Rogue 3 / Slayer 4 / Horizon walker

I want good Stealth and the ability to two weapon fighting

I am going For a former Assassin Turn good


I need Advice on Stats and what classes i should take Before entering Horizon walker