The two main European dealerships, Tankzone (.co.uk) and Heng Long Panzer (.de) don't list it with their other Clark hardwear. Going to The Clark Facebook page doesn't help much either. You could always email them and ask where they might be obtained, or maybe Stian can get them.
sales@clark-model.com
I'd not heard about this entry-level unit before your query, Alwyn; but it does sound fine for anyone with airsoft, who wants a good set of sounds, all the usual functions, and a decent track (10A per side) output capability.
"Get your facts first, and then you can distort them as much as you please"- Mark Twain.