MM - Not correct, actually
Article 6 paragraph 3(b) of the Cover Regulation states that ferry flight are derogated from the EASA regs, and are covered by National Regulations. Obviously since Jan 1st this is a bit circular, but effectively refers you back to the ANO. The ANO requires nothing for a non Public Transport flight in any class of aircraft beyond having an appropriate licence. Without an operator you can't have RVSM approvals or similar, but for a ferry within the UK that is unlikely to be an issue.