I finally have some downtime. I guess I’ve had time to stare at the project as it is and realized that it’s just not going to work. It’s extremely vulnerable to warping and just won’t run smoothly no matter how much tweaking I do.
After seeing this hackaday post, I realized I was being a bit of a bonehead. So, I’ve started over at the base. For a few day’s worth of work, it’s looking really good, IMO.