I need an AI generated animation edited

I have a 10 second ai animation I generated. The 10 seconds then cuts to an information page. I need a new 5-6 second animation for after the information page. It should feature the same background scene, and the same 2 characters preserved exactly in addition to one new character. I have an exact idea in mind of what the final 6 seconds should look like but have been unable to generate it myself. I have used Kling 3 for the initial 10 seconds. I dont mind what software or AI you use as long as it looks like a continuation and preserves the characters and scene. I have been unable to produce the scene that i want and will only pay if you are able to create the scene accurately. Only quote if you are confident that you can create the scene accurately. The main aspect of the scene is 1 character running onto the scene and tackling a jockey off his horse (basically), i have been unable to create it because the action scene always happens very slowly and it needs to be rapid and action like.