Okay, do I have to make the point that this is NOT 40k where points can be juggled like chainsaws?
I confess that chaos lacks upgrades and flexibility compared to the imperial navy, who have them all over the place, but let me make the point that most other fleets don't have a SINGLE OPTION for upgrades. Necrons? none aside from a sepulchre. Tau? Forgeworld has none and the citidel tau have 'varients'. Orks? nothing you can take is reliable with them on principle. Eldar? none. Space marines? none.
Sometimes, you have to deal with the fact that you don't have the points window, and you have to make do with what you have... that's part of the tactical fun of the game.