Mostly agreed with @JimHowell1970 here, looking at the rack it feels like a really focused version of what you think you want now but you probably need some room and time to explore to see what you really need. So I'd start off with half the modules here, scratching all the Dreadbox duplicates to start and then a few more, and give that some time. (I'll also second the suggestion that you fit a Maths in, it was my first thought looking at the rack.)