https://cdn.modulargrid.net/img/racks/modulargrid_1527781.jpg?1619549109

This is basically what i have, easier to look at rather than names of modules on a page. The main issue is Im still waiting for my case which should be coming in the next week or two. So i personally am not sure what I need hence the reason I asked for help. Ive played extensively with my small semimodular setup and i fell in love with all the possibilities they bring but going full modular is a whole different ball game since "i do not know what i need". Its just I still have some money and want to make sure I get things that will help me understand everything a this set up brings to the table.