Thanks for the reply, I have five actually, but all are set up for trail riding with aggressive tires (Smoke/Dart) and I'm specifically looking for a different experience, more upright, slightly higher speed (but not much, lol). I know many folks are happy with 26er gravel bikes, and lots of the frames I have resold have gone on to become gravel bikes. That is why I'm building up the 700C Coda, to see how it feels compared to my 26ers, at least generally.
One thing I am considering is turning my single speed Univega Alpina into a gravel bike. I just built it as a single speed and it's fun but it's the most logical choice to convert one of my 26ers. The others are all basically pristine and set up for / dedicated to trail riding.