I too built one 10-15 years ago. Still using it now. The bow block looks right, minus final shaping. Mine was also made from two pieces and through bolted. No need with a single piece.Should be correct if you are following the plan. Built one decades ago. My bow block was two piece with a thru bolt. Doesn't look like you need one. My mistake at the time was I modified the bow block to fit the length of the sides boards. Should have cut the sides to fit the bow block. The first major build I ever attempt, so a learning experience Never looked right and corrected it later.
I'm very interested in this buildEric,
Thanks, was not sure if there would be interest
Rick