So I decided to dedicate the morning to getting what I could done on his front feet - I'd tackle just the fronts today and give him a few days before getting to the rears. He is a smart little guy and very willing as long as you go slow with him. So starting this morning, he wouldn't let me touch him below the shoulder. With lots of cookies, some sweat and blood (on my part!), and a few rearing episodes from him, this is the end result!
His front hooves, before:

Left front, after:



One down, one to go!

Right front after:



He looks happier now!

I know they certainly aren't perfect, a lot needs to come off his heels yet, and lots of flaring still at the toe, and they need to be more even left to right, but I figured I'd pushed him enough for having only been here 24 hours. The interior structures are dropped so low they the sole is actually convex instead of concave right now, and I certainly didn't want to take off any additional sole in a hurry to get those heels down. I figured even a rough first time by me has to be better than what he had! I'll work on it bit by bit for the next 3 weeks until my trimmer can get out and fix him up properly. Hopefully in the next few days I can get him to stop kicking and let me get to his rear feet!