Nail polish remover is often cheaper than pure acetone, but be sure to look at the ingredients and buy the kind with mostly acetone
For example, while some of the best tutors are on the Game-Changer List (Demonic Tutor, Vampiric Tutor, etc.), there are still plenty of niche-variety (Search for Glory) or drawback-laden (Diabolic Tutor) options for players at Level 1 and 2
Which is a shame, because well, just look at them
Of course, this deck was built without a budget in mind, and you could easily just target a few key cards and build around those instead with cheaper alternatives, especially if you're aiming for a lower bracket of competition
Self-Destruct Oh, Gilgamesh, you will always be remembered as a hero
I imagine youd want to pair this with a green Doctors companion so that youd have access to mana ramp to cast your six-mana commander, in addition to a bunch of historic good-stuff cards you can recast for value