WOW !! That pricing is crazy, but I suspect with a 120 not much call, so almost bespoke one off's.
There is also the rear plastic bumper to replace with steel to accommodate the bottom pivot point and modifying/strengthening the rear cargo door pillar for the top pivot point to swing away ?
These more modern vehicles don't seem to accommodate off roading/overlanding much, not like the older series that seem built for it.