You can also get spinfit tips from amazon jp or e-earphone. Honestly I wouldn't recommend them since my experience with them wasnt the best. It would deform inside my ear and feel like it would slip out. But if you can make it work. More power to you.
Ordered. Everything should be set. Nop. Have zero experience with arduino stuff. As for the cables and such, I think our school has that stuff? Since the lab is for DLD students, they should have jumper cables?