Hi,
Experienced video developer at your service.
If you have the original source After Effects file, it will take less time to finalize the project. In that case, I believe it can be done in 4-5 hours. If I'd need to start the whole video from scratch, it would take me around 10-12 hours to complete.
Please contact me, so we could discuss the details and start with the project.
Regards,
Zveki