Larsa Essinel - Critical Threat from Dungeon 118

This dragon hunter is a ranger 8/ dragonstalker 6 (Draconomicon).

Anyone have any thoughts on how to build her in pathfinder terms?

I am not sure how to approximate the same skills, primarily the ability to do a ton of damage on the opening shot at a dragon. I could try to mod the prestige class myself, but that is a mess inside of HeroLab.

I tried looking for a good ranger archetype or existing prestige class, but I saw none that were specialized hunters.

I could try going with rogue or assasin for the damage dice, and giving her equivalent magic items to emulate things like hide from a dragon's scent and blindsense ability.

Sort of stuck, so I thought I would toss this out for assistance. Doesnt have to be an exact cross, just something similar to the sneak attack damage and first shot bypassing armor.

Found this preview of dragonstalker: link only BAB is missing ( I assume 3/4)

My first thought: rgr/rog with improved vital strike and deadly aim.

As for ignoring natural armour I have nothing. Penetrating DR though...

Maybe look into penetrating strike and check out the student of war prc's telling blow.

Thanks these are some good ideas. My PCs are going to have dragons they are friendly with soon.. or so I am expecting.. so I thought I might keep her in reserve to stress them out in the future..in particular since she does not discern between Good and Evil dragons.