Each time I get back to this mod, I spend too much time to figuring out correct order to install and how and where to download all files. So made this topic just be clarify steps. For all the hardcore players such issues are bread and butter but not for less active ones.
Order of installation:
1. BG2EE (v2.5).
2. BG2 Tweakpack The Tweaks Anthology or original "Ease of Use" mod.
3. Improved anvil (7.0).
4. Sibel NPC mod (optional).
5. ImprovedAnvilTweaks (v1.03 have issues on installation), ImprovedAnvilTweaks (working version) (optional).
Instructions on each step:
1. Install Baldur's Gate II: Enhanced Edition from Steam/Other sources. Check properties, make sure you are using version 2.5.
2. Ease-of-Use components. Using either Weimer-Ease or cdtweaks file (depend which you downloaded). Use the exe, select game folder. Older version of EoU does not detect EE, so in order to fix it need to copy mod files to game folder and after that run Setup-Ease.exe. Install ease of use components.
-Shut Up "You Must Gather Your Party Before Venturing Forth" (optional).
-Multiple Strongholds (Recommended).
-No Drow Avatars On Party In Underdark (optional).
-Some other ones might work or not (use on your own risk).
-Many of most used ease of use components are already baked inside Improved Anvil mod (Store price depreciation, True Grandmastery, item stacking...) or IATweaks (Identify all items, npc issues, Remove traps & locks), so do not install them at this stage of progress. Full list
3. Download, unzip, copy to your game folder and launch Setup-ImprovedAnvil.exe.
4. Download, unzip, copy to your game folder and launch Setup-SibelNPC.exe
5. Download, unzip, copy to your game folder and launch Setup-IATweaks.exe