Maybe time to go custom. I know a guy who had a bad neck injury once and needed a very upright position. He had Spectrum build him a road bike to his liking. The position looks incredibly strange, but it works fro him and he is a very fast rider.

Crossed the country with a septagenarian who inverted his drop bars for neck reasons. While I am not saying it cannot be done, his was not a very stable set up. It caused him at least two falls due to lack of weight/pressure on the front. Like you, he was a tall man. Maybe more gear weight on the front would have helped him.

You are in Oakridge, OR. (Jealous. Spent the night there during CO in 2007 and rode Aufderheide to Rainbow the next day. Drove through on the way to the start of CO in 2012. "It feels so good to be back here at the Dexter Lake Club." ) Co-Motion is your neighbor.