Yes, I together with two partners own the last two operational CL44s, currently based in Kinshasa, DRC. N104BB is now 3C-ZPO.
Actually, the Argus had nothing to do with the Britannia - but rather was a wholly new design. The CL44 was apparently originally designed to allow straight-in loading of missiles (our aircraft still have powerpoints apparently used for their coolant systems).
Unfortunately, a lack of Tyne 515s means that we will have to park these aircraft for the last time in the not too-distant future and bid them farewell.
African maintenance ingenuity notwithstanding!!