Wheel Locks for Elddis Caravans

I am considering a new Elddis caravan, but it has just dawned on me that I won't be able to use my AlKo secure wheel lock anymore.  I've done some Googling and seen it suggested that Elddis/BPW brought out their own version of the AlKo lock but had to withdraw it because of patent infringement.  They do offer a wheel lock as an option on their up-market models such as the Buccaneers, but it's not even shown as an option on the lower end stuff, and nohing is mentioned under the "Security" heading on their website.

I get a discount on my CC insurance for the AlKo lock, and I have rather got used to only having to take the little locking plate rather than lugging a great big wheel clamp around. Are there any Elddis owners out there with any comments on this?