2015 Aygo passenger wing panel

[GDJTAM]

After a decade of trouble free Corolla motoring I sold my car and bought a 2015 Aygo. I have a large 10  inch deep scratch on the passenger side panel, just below the indicator light. Had a quote from scratch repairers of around £300, thought I could repair the scratch myself but after buying the correct paint from Toyota (black diamond code 211), the finish does not have glitter in the paint, so the scratch  repair still stands out. I have purchased a complete replacement panel with the same colour code, used but in excellent condition with no marks. Now I'm struggling to find online how to remove and replace the panels. Searched online for manuals and tutorials but alas no joy. Cab anyone help guide me to a step by step site please?