The WEB10057 and WEB101440 parts are no longer available
I did some hunting around, took some much needed advice and came across the product below:
£12 a sheet
Bend, cut or drill it...get the shape you want and fix it easily
These are offcuts so the price is good (I think)
The photos on the website (link above) are examples of what you can do with it
The product is supplied as a flat sheet
Just though I'd share this in case anyone else is looking as I was
Happy fettling everyone
UPDATE : other views and suggestions followed. All gratefully received. My post is not a recommendation or a guarantee.
Edited by Elwyn, 17 February 2021 - 11:16 AM.