[tunaoftheland]

Many have already added excellent comments, and here's mine, as someone who's recently worked on a project with React + Redux + ES6 (Babel5 -> 6) + WebPack, etc.:

Start simple and refactor the application as you add the other libraries gradually.

In your particular case, forget everything else except React and ES5. It won't take long to understand what props and states are in React and to get used to the idiosyncrasies of JSX. You might even want to start out by kicking around in JSFiddle or JS Bin.

The other tools are very useful, but they won't be so until you see the need for them, Make notes of which parts you find annoying with the simple setup and turn to see the tools you listed to see if/how they will help you.

Kinda changing gears into a diatribe about the crazy ecosystem in the JS-land: I feel that there are several subsets of it that have been rising above the rest to give developers the productivities that they need. It's not clear-cut and there are many valid options, plus even more subspecies within those options. Several of them could be well-suited for the task at hand, so I wouldn't worry too much about making the wrong choice and paying heavy price for it. The way I see it, frontend development scene is tough if you have not already been immersing yourself in it for a while. It is like that now and it will be for immediate future. The good news is, it is getting better, and I think we will see the community gradually converging toward several collections de facto standards. It will remain amorphous, but not as overwhelming, I think.