What's the target number of systems you're expected to capture/K hack in order to unlock everything at intensity 5 (which is the level you get everything)?
Generally speaking I target "capturing 14 planets before the first AI HW assault" as a normal experience. On particularly painful scenarios you may need to do less than that, on easier ones you can get away with a lot more.
Anyway, that gives a total of 10k + 3k*15 = 55,000 knowledge from planets, 45,000 of which applies for alt-progress-xp purposes. On intensity 5 that's 225,000 xp, or level 45.
If you add in 3 full knowledge hacks that's another 9,000 knowledge from planets, or 45,000 xp, or up to level 54.
If you add in a single spire archive drain that's another 6,000 knowledge (on top of the 3,000 from capturing the planet), or 30,000 xp, or up to level 60.
Level 60 is where I was considering putting battleship-size (so FF/DD/CA/BB at 0/10/30/60, so each phase is longer than the previous) though perhaps 50 is more appropriate.