Ainsworth replied on his facebook page.
...he failed to address any of the questions about which helmet design he is claiming was Nick Pemberton's or Liz Moore's, or about the differences in his helmets and armor from the originals. Instead, he simply asks if we are disputing the evidence reported by Pemberton (and his "workforce"), Mollo, Lucas, and Liz's boyfriend.
"Red clay" or "red herring"?
...
If we can provide transcripts of Pemberton's testimony citing his use of the Morris Minor components in his sculpt, it should be very clear which design should be credited to Liz Moore, regardless of which helmet was made from red or grey clay.