Hello there!

I would say that it all depends on the project you're working on. Some projects require more tools and others require less. For a basic starter kit, though, it looks like you're on the right path! The only thing you're missing in your item list is a glass grinder and foil sheers! Something like this:

https://www.amazon.com/Glass-Grinder-Glastar-SuperStar-II/dp/B000L9C314/

https://www.amazon.com/StudioPRO-604-Studio-Foil-Shears/dp/B008EPVL1U/

I personally don't use a Grozer or an X-Acto knife in my projects, but it all depends on the project you're working on!