Fully buffed, with resolve stim in mostly 63 PVE gear I'm close to 2400 WP, but that wouldn't be ideal in PVP. I'd say cap out a little over 1200 expertise, put in power crystals in main and off hands, and resolve 27 armorings with PVP mods in a custom belt and bracer. But try out some different builds and see what you like.
The crystals are already in
27 armorings looks nice though!