Hi there everypony.
I'm afraid I just fubared my special Twilight in a body exchange job through impatience.
Results: One assembled Twilight with half a neck plug stuck inside her head, and one Twilight with a snapped off neck plug.
If anypony has a spare G4 neck plug I'll fire some dollars over to you on the ASAP - Also, if anyone has enough experience repairing and stuff to be able to get the neck plug out of the first twilight without doing open head surgery I'll happily mail her to you - I'd rather repair instead of replace as it was a gift.
Thanks for your time
Strogg