When I used to fly around with a friend who was k'hara he taught me there is no point in engaging in hostilities right off the bat, most players see a nomad and they either try to ignore it (which will result in said player getting shot although I fire some warning shots before full destruction) or go straight to combat mode, very few people want to RP with a nomad in my experience.
He played more of a curious alien which was the first thing about nomads I was taught (being new to the server), it was a lot of fun running around with him in a cloaked dread/BS and me in a HF/SHF, if people didnt start attacking us or just plain ignoring us we would normally leave them alone after we finished the conversion.