First and foremost, you ask these questions before the installation. If you've already installed everything, you're stuck with your install, and at best, our advice will help for the next installation.
Okay, from your order:
1) Don't install Baldurdash. Clean, patched BG installation and clean, patched BG2(SoA+ToB) installation.
2) Install EasyTutu.
3) Install mods for EasyTutu into EasyTutu directory, and mods for BG2 into BG2 directory.
4) DON'T install Ease of Use, or BG EoU.
BG2 Tweaks at G3 will have all you need, including all the fixes from EoU.
For activating the cheats:
Debug Mode=1
under program options; in Baldur.ini in EasyTutu folder for EasyTutu; in BG2 folder for BG2.
You're stuck with the original ammo, because EasyTutu tries to be true to the original BG. Use BG2 Tweaks to restore BG2 ammo stacks.
Also, for EasyTutu mods, try
http://www.pocketplane.net/tutumodshttp://gibberlings3.net/bg1npchttp://gibberlings3.net/coran(If you want Kivan, you'll like Kivan in BG1 NPC by the same author, and Coran friendship by the same author).