Any thing not covered now?
The only fragile looking thing not covered by the Flatland skid plate is the master cylinder. The plastic skid plate ignored this too. The only plate that I've seen to address this is by Adventure Spec.
But at $300 plus shipping from the UK, I don't think the added protection is worth it.
I'd rather just get this master cylinder cover from KTM Twins for $40 and call it a day: