yeah i think someone on here altered their face plate and dome to where it could be fit over the head of Anakin. or maybe it was the head they altered. cant remember.
but if your trying to convert it to a life size figure. there are better alternatives to get a life sized Vader than trying to modify the SS bust. that may be a whole lot of work.
you can find really nice props on ebay or in other forums like "the prop den forum" or "the replica prop forum"
if your not a member i would highly recommend you becoming a member. you'll find everything your looking for. and it will even be more film accurate than the SS bust if you want it to. depending on what you get. but if you do the research there are props out there that replicate what Vader looked like on screen. there are even some props out there that have linage to the OT films themselves. definitely something to look into if your willing to put together a life sized Vader.
just something to consider or a different alternative.
hope this helps some.
