Hi all, in case you are looking for an insert for your cabasellier bag, you can consider this Japanese seller on IG (@bag_trunk) and she allows you to choose from a variety of patterns/material to customise your insert. I got a few inserts from her and tried my luck with my cabasellier 31! And it came very well made (as always) and you only pay when the insert is completed and ready for shipment.
she will also advise on the bag insert price (it is pricey though) and shipment fees. Hope this helps