2k damage crits is a little high for what you've suggested your build/weaponry will be.
Did some quick tests and I ended with; [ On a target with 0 reductions, 100% to size mod]
110 strength W/ +10 mura & Frenzy - 1176~1342 crit damage
110 Strength W/ +10 Double bloody katana & Frenzy - 1275~1298 crit damage
110 strength W/ +10 Execution & Frenzy - 1411~1610 crit damage
On average pvp reductions minus the garment. [ Gr, toad]
Mura - 176 ~ 201
Double Bloody Katana - 191 ~ 195
Executioner - 846 ~ 966
The executioner appears better in numbers but the second someone notices you using it, they can swap to Agriope [ lowering it too 423~ 483] or evil druid/bathory and negate all damage. With the low health your build gives you, you'll be relying on frenzy a lot and once frenzied you lose your ability to weapon swap which will screw you over because of the ease of negating all your weaponry's damage with a shield and 2 armor swaps.