Burning Wish/Cunning Wish also worked differently in 2003, in a way that was very relevant to the format. I can't believe I forgot to mention "Combo Keeper"/"The Shining"/"Your Mother" (regional decks had regional names), a Burning Wish based control list that I ADORED, but was rendered non-functional after the errata on Wishes. The modern rules-text makes those cards weaker, however, so there's no reason to consider bespoke-restricting them.
Really you don't need to replay Yawgmoth's Will. I'm playing The Shinning variant for an Old Frame and I'm currently 5-0 and didn't need a double Yawgmoth's Will in a game. The same for Tendrils. Right now we are better players than back in the day and we have learn how infinite recursion is rarely needed.
https://www.mtgoldframe.com/ crew are trying to free as many cards as posible and they take a masive unrestriction some weeks ago. (Black Vise,Braingeyser.,Crop Rotation,Doomsday,Dream Halls,Earthcraft,Entomb,Fork,Mind over Matter,Stroke of Genius)
They have hosted three monthly tournaments online, you can see decks on their facebook group.