Hi grimlock,
We've actually had a few requests for compatibility with the ARB Bull Bar. Our WK2 Sump Protection Plate is compatible, but when we took a look at compatibility for our WK2 Recovery Hook and WK2 Recovery Point we found several issues that seemed rather difficult to overcome.
First, creating access to the recovery point. Our WK2 Recovery Point and WK2 Recovery Hook mount to the frame in the same spot as the ARB Bull Bar. Even if we could create a mounting system to make the 2 compatible, the ARB Bull Bar sits much further forward than the OEM bumper. Access to our recovery point would be difficult, since our recovery point would sit behind the bar.
Second, any cutting or alteration to the ARB Bull Bar will void the warranty on that product so we believe many ARB Bull Bar owners would be reluctant to make alterations.
Not that it helps ARB Bull Bar owners, but we did have some success altering our WK2 Recovery Points to be compatible with the Ironman Bull Bar, (see photo). Their bar sits a bit higher and mounts differently, so we were able to make things work fairly easily.