Keith,
Just got back at my desk after a marathon Bama trip. I was in Birmingham yesterday afternoon...drove to Pensacola, down to Ocala. Today I drove 300 miles (round trip) to vote.
Your knife is doable. Thumb notches, squared top hilt are both "NON" chargeable options. The "TB" is quite different from the STN. "TB" keeps the same blade shape as the standard Model #5. Best, Capt. Chris