There is quite noticable difference in scaling as best solutions that work for 10k don't scale to one million.
For 10k you need something like kc, torturer, nv, lurker, ,villa , hermit, hop, mandarin, bank, gladiator. Use torturer to stop bot and you should get 10k with kc-madman-bank-hop-mandarin-villa trick. I don't see how to increase treasure values to million.
For million I would use kc-procession-champion-lurker to make each card give 5000 actions, then with infinite loop trick play 1000 actions, play diadem and fortune