Luckily for me I have been buying straps from ABP for many years so they are kind enough to give me a discount as I tend to order lots of straps, LOL.
I recommendation is to physically go to their atelier in Paris as they literally have hundreds, if not thousands, of hides to choose from which have so many subtleties in tone, hue, color, texture, etc...Sadly this does not show on their website although the website does have a great selection of their stock items.
What I found seen for myself is the hidden treasures usually are reserved or put aside and are often not shown online 🤷♂️