Maybe not in your area, but it's very doable in other places, like where I live.

You expect me to believe there are other places than where I live?!

8 H100s would have enough VRAM to finetune a 70B model.

Is a single H100 enough?

80GB is enough, yeah.

I'm not sure what exact LORA/quantization settings would be ideal, but check out https://github.com/OpenAccess-AI-Collective/axolotl#config