From the x-rays, I see very thin soles along with a severely distorted hoof capsule: under run heels and a break over point set way too far forward for the particular foot. Does this horse have metabolic issues?
If I were shoeing this horse, I would start to bring the heels back (to the widest part of the frog would be ideal). Breakover needs to be set back much farther than where it is currently - with how far in front of the coffin bone the shoe is currently, it is acting as a lever and prying the toe so it migrates forward. This horse may also need pads and packing because the sole is so thin - this would also help ensure loadsharing throughout the bottom surface of the foot. I too am surprised that this horse is not lame.