My guess is that it's likely to be G-CBYY, it's out of CofA & has recently been purchased by Startrade in Germany. Take a look on
G-INFO, there is a pic on the record.
See quite a few types on trailer coming in & out of local airport with paintshop based, H369 was the last one I saw on trailer with 4x4 towing, albeit minus blades & engine etc...