Creality Original Ender 3 Direct Drive Upgrade Kit, Comes with 42-40 Stepper Motor Hotend Kit, 1.75mm Direct Drive Extruder Fan and Cables Support Flexible TPU Filament

If it were me in your situation, I’d just get this and call it a day: https://a.co/d/09NcJqXh You’ll outgrow that setup eventually probably, but it’s an easy and cheap drop in now that will get you running without any serious modifications.