The only Belfast on display is XR371 "Enceladus" at the RAF Museum at Cosford. I sincerely hope that they do not intend to let anyone else have or even borrow any major components!
I did hear on one of my grapevines that when G-BEPS was parked by Heavylift, all useful spares were carefully removed and stored. I have subsequently heard that a couple of engineers were equally carefully putting all the bits back on again.
This would certainly be a long process and, in particular, the poor bu**er who has to put the hydraulics back together again should be payed every penny that he asks for!