Get your hands on a TRU Asia exclusive Megatron.
Get your hands on a United Megatron or the mold.
Remove TRU Asia exclusive Megatron Head.
Remove head of United Megatron or this mold and install Asia exclusive head.
Note: This is the main reason I came up with this whole idea to begin with, I love the United Megatron mold but am not a fan of the head sculpt. If this head can be attached, I feel it would look incredible and would result in him being displayed proudly in front of the pack.
Wait patiently for Headrobots to come out with yet another repainted head for this mold, to turn your TRU exclusive Megatron into pure awesomeness.
Hey I can dream, can't I?