Open Source Solar Tracker: First big challenge

The big challenge I have before going to Matera unMonastery is to build a prototype of the global system. It will be composed of a (small) solar panel and two motors. One to move the panel horizontally and the other one to move it vertically. Of course I will also need a global structure to put it all together.This prototype shouldn’t be too large so that I can bring it easily to Matera.

Any ideas are welcome!