D&D 5E Elven Rogue with advantage and Elven Accuracy. Is diping into fighter to get the Archery Fighting Style overkill?

[Iry]

The UA Ranger Class Variants were excellent.

 

[Stoutstien]

?

The ready action takes place after the trigger is completed. Not only that Saying 'anything' isn't a valid option because doing nothing isn't a possiblity. Even a corpse is doing something all the time.
The the trigger has to have a perceivable start and end.