Multi-project master directory location

gradle is a fantastic build tool with a hugh flexibility. Therefore it would be really great to get more flexibility in locating the buildfiles of the master project. Because of our versioning system we need to have a flat hierarchy. To be able to load different source components (each of them is a multi-project) to one location in the file system we want to avoid a collision in the file system (both of them would provide a directory called master).
Wouldnt it be possible to introduce a gradle property like master.project.location which contains the relative path to the master project location?