Spot pricing and instance availability don’t apply to on metal hosting. You’d have your own machine dedicated to your own use only, at a locked in price.
That's too small. I was quoted a machine with ~1.5TB of vram, for $10k/mo. This was the minimum node size in the AI data center I was talking with -- they don't make smaller nodes that you can lease as bare metal. There is no public pricing though, and you had to know people to get in.