Well unfortunately there are no 'mini-mods' when it comes to things like focuses, because unlike something like Stellaris, HOI4 mods can basically only be run one at a time - especially if they change things like Focuses and Techs. Trying to fit conflicting mods together is simply a non-starter, and it's equally a non-starter for Paradox to expect that modders create an entire late game for free.
Which really goes to show how much of a hole that Paradox has dug for itself by having Focuses be an end all be all for your nation's events, foreign and domestic. The simple fact is that Diplomacy is a joke and your options with it are extremely limited and often heavily influenced by the focuses. WW2 itself is likely to be declared through focuses, and not through a Casus Belli system or a wargoals system. The post-war diplomatic system is non-existent, there are no early cold war events like the establishment of the UN, Berlin Blockade, Iron Curtain, Operation Unthinkable, etc. World Tension never drops, and so a war basically erupts when either you or the AI gets bored. No prep for WW3 either. Nothing.
If we actually had a diplomatic system and left focuses to internal politics, we'd be much better off than this unilateral 'one size fits all' system that offers no end-game whatsoever.
HOI4 after 1942 is BORING. Pure and simple. So I've conquered Europe. Big whoop, I can do diddly squat with it except spam IC.