Help to compile outdated Android application (refreshing/converting it as an option)

I need a step-by-step instruction, how to successfully compile vertcoin-wallet,apk from this project: [login to view URL] - starting from: clean Ubuntu (linux) or Android Studio 1.2.2 (windows). The project is a bit outdated - so just importing it into Android Studio and run - IS NOT ENOUGH to complete the task (important dependency here: [login to view URL] ). The key matter for me is just to succesfully compile the wallet - even with Maven, with some outdated environment, using local repositories and other tricks (first option) If you rather prefer to use a current development tools - the code updating/refreshing (slight modifications to the user interface e.g. ActionBarSherlock, converting from Maven to Gradle) - is of course a second option here, and obviously is considered as a plus. Please declare, which option you prefer.