The paint job looks great, I think you should be able to use a simple car battery pack (7.2v) with a simple forward reverse esc from a regular hobby shop or towerhobbies, that way it wont cost too much. Again I hope everything works out great for you, Let us know how it goes. ( Iam looking at getting the Dumas Akula myself, cant find that Robbe seawolf any where near me. )