Customized Building

For building to Windows, is it possible to customize the layout? I want the exe and DLL’s to all be in the same folder, and have seperate folders with seperate stuff in each one. For example, the City folder in my Assets folder, when builded, it contents appear as a .asset file Unity uses named SanFrancisco.asset

The reason for this question, is because I don’t like the build layout Unity uses right now.

Bump. No one knowing?