Aircraft used for an EASA Course must be on the school's list of approved aircraft which must be in the operations manual and on the record supplied to the NAA.
You would need to find a school which was willing to add your aircraft to their approval.
You also would need insurance to cover the examining activity as examiners are meant to see this. I believe the UK CAA require £1,000,000 as the coverage but can't remember between all the different countries requirements from their examiner briefings.