I’m here to tell yall that you are greatly overthinking a gravel race bike. For the first time in a while, there is a cycling discipline where you can straight run what you brung as long as the tires make sense and be just as fast as someone on a ridiculous rig. Crockett, 40mm tires, di2 not necessary. This is the one bike I could probably live with if I was restricted to one bike.
As long as your routes/races don’t include some serious chunk, you don’t need the ridiculous rigs I’ve seen. Nor do I believe that the aero-gravel stuff makes that much sense (at least not yet). This is all to say, enjoy the scene before the tech catches up and you might have to pay to play. I say this as a most-of-the-time roadie.