…and I don't mean to criticize or bad mouth your rifle. I do appreciate your methodology in identifying specific characteristics and seeing how they add up. Wundhammer was a consummate professional and what might have been done to his work later could surely be grounds for misidentification.
I can't tell from your photos if a cheekpiece was removed but I'll bet the cheek divot was later work. The only Wundhammer I've seen and handled was Newton Dan's rifle above, and of course it wasn't signed or identified, except by Michael's ownership.
I've studied American made muzzleloaders and still laugh when I see Pennsylvania longrifles and Hawken cap locks in books that were later proven to be misidentified, but still go on misinforming readers.
Your hesitation is appreciated.