AI Character Replacement in Existing Video Ad

I have an existing video ad and need it modified using AI video editing.

I do not need a new script. I want to keep the existing dialogue, voice/audio, flow, scenes, pacing, and overall structure as close to the original as possible.

Required Changes
Replace the female character at the beginning with a new AI-generated female character.
Replace the doctor with a different AI-generated doctor.
Replace the anchor/presenter with a different AI-generated character.
Keep the existing dialogue and voice/audio wherever possible.
Keep the original scenes, camera angles, timing, and editing style as close to the original as possible.
Replace the existing brand/product name with my brand name, which I will provide privately.
Make the character replacements look realistic and natural.
Maintain character consistency throughout the video.
Final video should be suitable for Facebook/Instagram advertising in 9:16 format.
AI Tools

You are free to use AI video/image editing tools to complete the project.

I am specifically looking for someone experienced in AI character replacement, face/character consistency, and realistic video editing.

Deliverables
Final edited video
Female character replaced
Doctor replaced
Anchor/presenter replaced
Existing branding replaced with my branding
Final 9:16 export ready for Facebook/Instagram
Timeline & Budget

Delivery: 1 day
Budget: ₹500

Please apply only if you can complete the work within 1 day and have experience with AI video editing/character replacement.

Please share 1–2 examples of similar AI video editing work with your proposal.