Let's continue pretending that horse poop magically transforms into money instead of the other way. So money doesn't matter. If you could buy anything for your horse, what would you buy?
First and foremost, more land. Right now we have roughly 1 acre set aside for grazing and paddock space and that just isn't enough. And I'm going to pay someone to keep it in tip-top shape. If a weed so much as thinks about growing, it's gone. Of course, I'd also want enough land to produce hay for the year for all animals, but would also have some one come bale and stack it. Then, more wooded land with trails to ride around in.
So much lush pasture...
Max would also get an indoor arena for his benefit, of course. He might not appreciate it, but it would be for his health. To help keep him in shape all year long. No need to worry about it being too hot, too cold, too rainy, too whatever. 'Cause this thing's going to be cool in summer and warm in winter.
I'd also have several custom saddles made for him. At the very least, one western style, a close contact, a dressage, and probably a treeless just because I'd want to try it.