Whopity
The IMC or IR renewal/reval no longer counts as the dual flight with an instructor Part FCL 740.A (b) (ii) states
a training flight of at least 1 hour with a flight instructor (FI) or a class rating instructor (CRI). Applicants shall be exempted from this flight if they have passed a class or type rating proficiency check or skill test in any other class or type of aeroplane.
The imc or IR are not class or type rating therefore if you are solely revalidating an SEP you will need a flight with an instructor however your 747 type rating will do nicely as the dual flight