Build a Chrome Extension that makes url links from tel numbers

I am looking for a developer who can build a chrome extension in the latest manifest 3 format which does this:

1) User loads an https html page as part of their work
2) The extension scans the page for a mobile phone number that meets this criteria:
- is 11 digits long (after removing any spaces if they exist)
- only contains numbers
- starts with 07
Example: 07548123456 = good 01604123456 = bad

3) If the above criteria is not met, do nothing, else...
4) Extension removes the leading 0 and turns the number into a clickable whatsapp link of this format: https://wa.me/+447548123456
+44 will always be the country code to append to the start (replacing the leading 0).
5) When the user clicks the hyperlink, the desktop version of whatsapp will open for the user to start a chat with the number. Please test this on your machine.

This is the xpath location on the page where I want the number to be detected, please do not use this as a way of restricting where the extension will find the number on a page, but as a guide to see that in the first use case I am working on, that the number is nested in a form and tables.

/html/body/table/tbody/tr[2]/td/table/tbody/tr/td[2]/table/tbody/tr/td/form/blockquote/table/tbody/tr[5]/td[2]

The extension should be able to find a matching number anywhere on the page regardless of it's structure, and be able to turn an unlimited number of matches into the whatsapp link format specified above.

The chrome extension is to be build in the latest manifest 3 requirements. And, the extension will have a logo (just the whatsapp logo is fine!) and be identifiable from the extension tray on Chrome.

It will work on the latest version of Chrome.

I do not want it published to the Google Chrome extension store, it should be delivered privately and I will load it as an unpacked extension.

Please do all checks to ensure the extension meets the Google policies and that it loads correctly without failing or being flagged by Google.

Please ask if you have any questions!