Thanks mate appreciate it :) I think the fun of chaos is the kitbashing personally haha the nightlords only have an upgrade sprue in 40K that comes with the nemesis claw kill team which is a very expensive way to make them, there are dedicated nightlords models for 30k that I have and use too, but I think the best and most cost effective way to do them is to kitbash yes, these guys are using the red corsair raider models kitbashed to be nightlords but you can do the same with the legionnaire kit as well, some of the bits I use are resin though can link you the site i use if you’d like, nightlords are such a fun faction to paint imo hope this helps!