This article claims 236mm and 290mm. 9.29”/11.41”. Don’t know if that’s actual wheel travel or “damper travel”.
https://www.whichcar.com.au/news/2018-ford-ranger-raptor-all-the-numbers-you-need-to-know
Pretty unlikely that the Bronco will compete.
Stock Class 4600 requires 1000 units to have been built per model year.
Modified 4500 requires 250 units.
Legends 4800 requires solid axles front and rear.
Then there’s the unlimited class which is unlikely and then the UTV class.
I don’t know anything about KOH, other than there are some extreme trails for extreme buggies. How tough are the trails in the “modified stock” or whatever class?
Serious question: what makes that setup better than what we’ve seen on the Bronco? They both have a lot of low hanging fruit, which I guess is a necessary compromise in order to achieve good shock travel without the shocks protruding into the truck bed or interior.