System buy list

Dear friends ;
Thanks everyone.
I am a small farmer. And you’re confused about what I should do.
What should I buy to install this system on my old tractor? Do you have any suggestions for me? Can you give a direct address? Maybe everything is clear, but I’m having a hard time.

You can buy what you need here
or you can get it on mouser or digikey if you have idea about soldering with tin and some electronics