Share Point: search page required, driven from an Excel list

Description

I require a search page within a share point site. It needs to be a simple search text field, similar to google, but on searching the results will be coming from an Excel document which is also hosted behind the scenes, wihtin the sharepoint site. *** this is not the normal search option in Share Point, it's a custom power app ***
On page load, the search results will be loaded from the Excel.On keypress, the search results will automatically search after 3rd character has been typed... showing results dynamically as the person types. Searching will be driven from a few columns in the Excel. Title, Description, Source. And searching will span those three columns, ie. "Finance Report" will show results where the words Finance and Report are present in the Excel...
This Share Point customised page needs to sit within the middle of a normal Sharepoint page within an internal company website.
So for testing, you will need to build and test it in your own Sharepoint for us to look at, review, sign off... and then on "OK" I need to migrate it into my company internal website myself (you might be able to remotely watch me do this, will see what i can do).
Native English speakers only please. Sorry but i'm very strict on this detail since i usually get bombarded with people from all over the place and building something like this needs good communications. Also, no consultancies or third parties... i am looking for 1 developer who will build it, not passed off to others.