Whiteboard Animation

I want to refresh an existing promotional video by Branding and product look. You can lift the full script and key timings directly from my current video using voice to text.

Here's the video as a guide: https://www.youtube.com/watch?v=nq03EvsYoBQ

a. This is a self-set up product, so it is cheaper, and they control on-going
b. To mention somewhere timely for the buy device setting up is easy and we are here to assist

Here’s what I need from you:
• A polished whiteboard animation that follows the original & script and runs roughly the same length.
• Extra script to be added (point a and b)
• Smooth pacing, clear handwriting effects, and neatly synchronized transitions
• Google Rich, YT optimised and seo optimised and mobile friendly
• ONLY AUSTRALIAN Voice-over synced to the video
• High Quality, crisp 1080HD

Note: Please - to not waste time, you will need to be proficient in English so once I've answered your QAs, receive the draft, I’ll provide any quick notes with an aim to wrap up quickly and this can be achieved if you have actually read my proposal.