Sanding and bondo work continued... One of the legs (on the left in the pic) seems to be coming along nicely while the other (the imperfect / warped) one is a major hassle. Because the pepakura model consists of low-polygon count design and the unit in the game isn't perfectly smooth (aside from the portrait) it's hard to determine how smooth to make the legs--that is whether to keep the appearance of sharper edges or to round everything off smoothly. I think I'm going to try and keep the front somewhat sharp and try and smooth out the back. It's taking a lot of body filler though, already went through a small tub of it. Might have to pick up a large gallon size portion for future pieces too.
Still a bit of work left to do on the legs but making slow forward progress I think.