Regards the Spitfire going to Brazil -it went to the collection of an airline owner. That airline was looking at a big purchase of aircraft with ‘RR’ on the cowlings !
And they were choosing between R-R and P&W for their engines, hence the nice shiny formerly-airworthy birdcage Corsair parked alongside the Spitfire IX in the same museum.
And who do you think bought the MATS Connie and donated it to the Koreans? P&W again, of course!