>>7184949You will need the base neck piece that came with the ASM Reptile.
I trimmed the top portion of that neck piece(green line) so the head would fit.
I used Apoxie sculpt to join that base neck piece to the body and to cover any unsightly gaps.(Blue line)
I found a round plastic round piece(red ball) that would fit the neck hole of the new Reptile head. It might of been from another figure not sure where it got the round ball piece. It was in my custom fodder pieces.
I then drilled a hole through the ball, cut the top part of the neck peg(yellow) and super clued the ball into the neck peg. Before you apply the glue make sure that you have cut enough of the neck peg to allow the head to sit close to the base of the neck.
I then painted the exposed Apoxie Sculpt areas to match the rest of the figure.