Java 2D Game Help

Greetings,

I need help with a Java real-time strategy game I'm creating. I need assistance with seven tasks and they are:

1. Remaking my main and skirmish menus.
2. Creating an tile map option that would allow the user to create an isometric map based on a text file.
3. Putting my game in world coordinates.
4. Fix my zoom in and out class, so that the game zooms in out relative to the mouse point.
5. Saving settings.
6. Game window based on screen size.
7. In-game mini-map.

I haven't been using Java game without any gaming libraries, but I would be open to using the gaming library LibGDX, or other libraries if it would make these tasks easier.

My budget for this project is $500. However, I could add a little more if need be.