As an ex TMAC F/O, I also firmly believe the Belfast Tyne was different from the CL44 Tyne.
I didn't fly the Belfast, but I believe it's starter motor was electrical, DC I'd imagine. The Edsel's was air powered and needed an air start cart to turn it's Tynes on start-up.
I also believe the Belfast had water-methanol injection which the Edsel did not
I do remember through the mist of the sands of time, that th Edsel had the RR 515 mk.12. Don't think the Belfast had as much power, and may have had one section less in the turbine department.
Props were the same though, as when TMAC acquired the Belfast spares holding, I believe it included a treasure trove of something like 40-odd ship sets of proppelers. I do now that suddenly we got new very shiny props all of a sudden!
Good luck to all involved in getting her airborne again. The old lady will be happy to leave her damp and dreary parking bay at BOH for the warmth and splendour of " the sunlit plains extended "
BSD.