Yeah finecast is absolutely terrible, shame that several of our elite units like incubi are finecast. I've resorted to 3rd parties myself sometimes, just better quality.
Not sure if my greenstuff skills are up to the task of making scales, but I'll give it a shot. Right after I ordered a bunch of wrack vials bits I noticed the bigger Talos ones might fit better, so I'll grab some of those at some point.
@Meaver: more arms on ogryns seems like a real big challenge. Spikes won't be a problem though, grabbed a bunch from the warrior and raider kits.
The Night is Dark and Full of Terrors...