Hi Kelly, sorry it's taken 4 years to reply. I never got around to finishing this off. It was sold along with my collection of models and WW2 items/relics to a fellow collector.
However I am sure he was in touch with family members of Alex Pietrzak as he was previously involved with the works to recover the remains of the aircraft.
I no longer have his contact details but his name was Alex King and and was involved with a website called Aircrew remembrance if I remember correctly.