Modification to Proposal - Order - Invoices with Width | Height | Colour

The normal quote - order - invoice only shows qty | unit price

I need to add and store these new line feeds in quote - order - invoice:
width | height | colour to be added to the lines

Therefore, the quote - order - invoice lines should be like that :
Ref | Description | Qty | Width (in mm) | Height (in mm) | Colour | Unit Price (which should pull the value from a rate table where the sqm price will be x width x height per colour. (import option important to update)) | VAT Rate | etc …

How much would it cost ?

Regards

Vincent