We discussed this at my table and I think this accounts for Armor, Silhouette, and Not Being Too Crunchy:
Leave Armor as RAW, wherein 1 Armor point = 10 Soak.
For damage that exceeds soak or for craft with Armor 0, the remaining damage is divided by the Silhouette of the craft, as suggested earlier. I'll report back once we give this a shot.