The downside of shipping the action and stock separated. You have to rig up some kind of brace to protect the trigger. Seen this happen more than once. I was going to recommend JM but see you've been there. Did he say when he might have more?
There's a metal trigger and sight set on the yellow right now:http://www.network54.com/Forum/79574/thread/1326737285/FWB+124+parts+now+1-3+off
As far as I know, the rear sight was always plastic. The first generation Sporters all had plastic triggers as well. That metal front sight,......again that must be from an early run as well. Ive never seen a sporter front sight like that before. The trigger blade is still worth making an offer for though.