Wii U version is better than GCN version, even with upscaling in Dolphin, so def stick with that. Quality of life changes and upgraded textures - it’s the way to go. Give it a try in emu.

But low key a Wii U runs for less than $100 these days, and it’s got great games (one of the best consoles for Zelda generally) but is also an emulation and homebrew beast. Even the vWii on it can be hacked for GameCube games and standard Wii homebrew. I would just buy a Wii U tbh. I love mine!