I was running a worse version of this build that started off as a knifer with stealth in the 80's and 160 throwing, (i'm at mech89 elec92 chem13 biology40 tailoring 94) found this guide, made it a lot better, then started changing it again. (i still use stealth tho and have only 20 persuasion cause im a chuddy)
i also use a cloaking device, which is probably nowhere near as good as literally any other utility in slot but 15 evasion and more stealth yippee!!

Came back to see if there were any new posts, and a bit of the stuff i changed is here!! (i tried to fit polymath as well but at level 12 cause i have frontal lobe damage or something)
anyway, have you given any thought to anticoagulation coatings on your sword?