I mean... I wrote it right there and all three posters didn't get it. The account in question will not have the monk class. And I don't expect to be able to take the assassin and the scorpion wraith, I expect to be able to take all three tiers of scorpion wraith even though I didn't go 18 rogue.
I originally had her dex higher and her con at 14. But then as I was figuring out her to-hit with sneak attack accuracy, weapon focus, bonuses to dexterity through both race and class, I found I could hit dex 30 pretty easy. Let's not forget that this character does have improved evasion so reflex saves are supporting synergy.
It's pretty easy keeping the rogue skills in balance. I probably could take a lower intelligence and still get full rogue skills (I put too many skill points in both jump and open lock).
However, even with the logic up behind the fact that the character will likely not miss much I think I will adjust the con/dex as suggested.
I think I still want to take sap to try it out, but may ditch iron will for oversized two weapon fighting.