1. How about an installer for LME4?
2. Where does the Mac modding community exist for Mac Total War games?
1. If you get it working then I might be able to spare a little time to help. If you want me to do it all myself then it will take a little longer to do as my todo list is quite long right now.
2. All over usually most of the more popular mods have a few Mac users. I know for example Darth Mod works great on the Mac you just need to manually install it.
I do what I can to help the Mac modding community and I have written quite a few installers and converted a number of mods to the Mac, these mods have been downloaded 100,000's of times since I first started making Windows mods work on the Mac with almost all Feral games.
However modding communities thrive when you get community action and effort, I will be make a Napoleon example mod at some time in the future but I have a full time job at Feral producing new games and updates which have to take priority over free modding projects.
If you are keen to help with modding check out some of the modding forums and read the Darth Mod forum on Total War Centre modding website has a few threads on the Mac version, using that information you should be abel to make a start on Napoleon mods as Empire and Napoleon have very similar modding methods.
I am always about to try and assist but porting, testing and writing mods takes up a fair bit of time so I would not turn down any community help
I can do it on my own but things are easier with more people. As most Empire mods can be GB's in size testing they work can take a fair bit of time as you need to reinstall the game after every test!
When I do an example mod I will see if I can use LME4 as the first example.