Footage of Metalasaurus in the Space Base Hanger is Sentai footage.
The shot of Phantom before he changes to Havoc is new footage.
Here's Piranhatrons, Chromites and Havoc
Footage of Havoc as shown on the Viewing Globe is new footage.
Everything in the area where they're holding a tied up Cassie as a prisoner is new footage.
Here's the Phantom's Power Ruby
Here's another shot of the Phantom's Power Ruby but this time with it activated
This shot of Metalasaurus is the start of new footage even though they forgot it's supposed to be the 2nd suit, not the 1st one. Oops.
Once you see Havoc then it's back to Sentai footage. The Rangers Shift into Turbo. Once you see all 5 morphed Rangers in a group then it's back to Sentai footage.
This shot of the Phantom in the cage is new footage but it cuts back to Sentai footage once you see the Pink Ranger in her Rescuezord cockpit.
All following shots of Phantom in his cage is new footage along with his interaction with the Pink Ranger who is by his cage. Once the Pink Ranger returns to her Rescuezord cockpit then it's back to Sentai footage.
Once the Giant battle ends and the Rescue Megazord lowers its Artillery Power weapons, it then cuts to new ground footage of the 5 Rangers.
All footage of the Phantom in his tunnel is new footage.

Sentai footage comes from Car 31