Zero-time abilities cannot be used when you replace your turn. However, you can use abilities if the appropriate trigger comes up. All 3 of the ones you mentioned can potentially be used. Sith Rage is used when attacking, so if a replaces-turn ability generates an attack you can use Sith Rage. Same thing for Overwhelming Force. I know that Knight Speed and the unnamed move-faster Force power can be used before movement even if that movement is part of a replaces-turn effect like Charging Assault. If I were judge I would rule that the same is true for Force Leap, but I'm only about 95% sure on that one.

Zero-time abilities is the one that usually trips people up. Targeting and Jedi Mind Trick are examples of zero-time abilities, which cannot be used if using a replaces-turn ability.

Abilities that trigger at start or end of turn (e.g. Override) can still be used if using a replaces-turn ability.

Picture the turn like this:

1. Turn starts
2. Take the turn
(Insert all the attacks, movement, replaces-attacks abilities here, with zero-time abilities coming before or after any of the movement/attacks/etc)
3. Turn ends

A replaces-turn ability replaces all of step 2, which is when you would need to use your zero-time abilities. But the turn still starts and ends, so abilities with those triggers can still be used.