^Kylo says that ‘we have the rest - recovered from the archives of the Empire but we need the final piece.’ That would imply that they don’t have that piece.
Getting back to the larger edit, I was thinking about how to solve the issue of the Starkiller’s absence from the first half of the film and how exactly it functions. One solution could be to have Kylo receive a vision about the weapon when he’s asking Vader to show him the power of the Dark Side, to ‘finish what you started’. Right after he says that, it could cut to the shot of the Starkiller beam lancing past the Star Destroyer, then the next two shots in the sequence of Kylo on the Star Destroyer. Perhaps end it with the final section of the planet explosion. Then there is the shot of Vader’s helmet.
This somewhat explains the Starkiller’s function earlier than even the original film, and creates an expectation in the audience of a catastrophic event that plays out in a similar, but not identical, fashion in the end, since always in motion is the future 😉. It also mirrors Rey’s vision and further links the two characters thematically. Finally, it allows us to use every single Starkiller firing shot, which are quite lovely in my opinion.
I was also considering an alteration to the Hosnian Destruction (Sorry, it’s a compulsion). Anyway, there might be a more simple fix for the destruction than the one currently in the edit. Han’s death can stay as it is in the original, complete with Leia reaction, except that the brief cutaway scene directly after where they explain that the Oscillator has been damaged but not destroyed can be moved to after Poe wrecks the Oscillator from within (the 2 minute warning would be cut). Similarly, Hux’s brief cutaway where they say that it will be charged in 30 seconds would be moved to after Poe says ‘There’s a brand new hole in that Oscillator’, so that 30 seconds elapse during the trench run and interior attack.
So here’s a possible sequence:
Han’s Death and Leia’s Reaction
Forest Fight Part 1
Atmospheric Dogfight
Hux’s 30 Second Countdown - ‘Prepare to fire’
Trench Run and Bombing
Damaged but Not Destroyed - panicked look of two technicians, one of which says ‘Admiral, the weapon…’, and doomed look from final technician as the panel behind him flashes red)
Hosnian Destruction - perhaps with the added shot of the laser going past the Star Destroyer, sans Star Destroyer, to make the destruction sequence less abrupt
Leia - The shot (flipped and color adjusted darker) where she is leaning against the viewscreen at the end of the film, right before 3PO arrives with good news. She could be listening to the static of a Hosnian transmission cut short. Only the end of this shot needs be used in the later scene, to reduce the similarity.
Destruction of Oscillator - presumably from stress on the weapon system.
Forest Fight Part 2
In this sequence, the trench run still has a purpose outside of revenge, and we conclude the X-wing sequence before the Starkiller fires, allowing for our undivided attention afterwards to be on Kylo and Rey. The connection between the Republic and Leia is also emphasized, since she gets a reaction shot to both Han’s and the Republic’s destruction.