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.