Yes, you need all of those except OBGE (I mean it's a good mod, but not NEEDED). To build your bashed patch, find the bashed patch.esp file in Wrye Bash. (If it's not there, then you need to move in to your data directory from your "oblivion mods" directory or "mopy" folder (I think, I haven't reinstalled Wrye Bash in a while). When you're ready to build your patch, right click on your bashed patch 0.esp file (in Wrye Bash) and click "rebuild patch". After that, a window will pop up with a lot of options. Take your time to scroll through all of the options so you can learn them all (there are a lot). Read this