If you are a FD class you can stay non-KOS a little longer. I needed to get thru the Cresta earring quest and the 3 outraged spawns. I was a necro and had a mage box. I set mage pet and merc to passive/ghold then would just kill with necro and pet. When mob is about 25% left FD and no faction hits. Rinse/repeat. I still ended up KOS on my necro but with the mage still non-kos I could run him around still snice he was non-KOS then CotH me up.
I forgot to FD on Elder Ekron and took the -500 faction hit. oops