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HICO-P: Yes you are quite right. In fact all Ferranti's 105's had some former history:
BAFD, as you mention, was owned by Mackenzie-Hill, veteran PPRuNer "Speechless Two" was the personal pilot to Charles Mackenzie-Hill and moved from Mackenzie's to Ferranti (via a contract with Wimpey Sealabs). 'Speechless' went on to become Ferranti's 105 training captain and eventually chief pilot of BCAL Helicopters after they bought Ferranti.
BATB was formerly owned by Rolls Royce and still flew for on contract for them after Ferranti purchased the aircraft.
And BFYA flew for one year with Heliswiss, remaining on the German register as D-HJET, prior to being delivered to the UK.
S.