How hard would it to make a 2 minute Cinematic?

So I want to write and direct movies, and I want to show the concepts I have in about a 2 minute Unreal Engine cinematic because I don’t have a ton of money to make live action concepts.
I’m wondering the difficulty of taking on such a task with this engine? I want to show multiple sequences from my many movies, to show whats in my head in away. I think really creatively
and I want to show that in the best way possible and after seeing some of the cinematics made with this engine I think it would be perfect, any advice or help is very appreciated!