Let's see, looking at my draft the Panzer's Body is 9 (12), putting the natural body one under the starting max for a troll. The parenthetical 12 equals a +3 to Damage Resistance Tests (but not the Body attribute itself) from Titanium Bone Lacing. Looking at my draft, Panzer requires a Body of 5 or higher...9 (12) is higher than 5. So I'm not sure what the problem is.
Ah, I think you mean that the Body of the cyberarms should drag down the overall body? NOW I see what you mean. Yes, you're correct, that was a gaffe on my part. I tend to forget that cyberlimbs have their own Body attributes, because well...I don't think they should. But that's another story. Yes, I see what you mean now. The adjusted Body of the Panzer should probably be 9 (

[11] instead.