Moving from Origin to Games4theworld

I want to delete my Sims 4 game and all of my expansion and stuff packs from origin and download from Games4theworld, but I want to keep the game data. so far I have backed up my mods, saves, screenshots and tray folders. Is there anything else I need to back up so I can have all the same data running on the Games4theworld sims?

Although a new installation will not affect your played games, you can make a backup by copying the folder Documents\Electronic Arts\The Sims 4 to your desktop.

There's no need to delete your game and download everything again. Just download DLCs you don't have using my repack.

In short: download _setup.exe, helper_tools.rar, no-origin-fix-1.46.18.1020.rar and dlc-*.bin files for DLCs you don't have.
Start _setup.exe and install missing DLCs. Now you have two options:
1. Keep both Origin and cracked version - make a copy of "Game" folder and name it, for example, "Game - cracked". From no-origin-fix-1.46.18.1020.rar extract crack files (there should be 5) to "Game - cracked\Bin" (password is origin-fix. And disable automatic updates in Origin.
Pros: you can still download from Gallery on original version and then use those items on cracked; you can download updates from Origin and then just apply the crack (whole process of copying "Game" folder and extracting crack again).
2. Get rid of Origin version - move your game installation folder to other location, extract crack from no-origin-fix-1.46.18.1020.rar.
Pros: no need to copy or rename anything.