From what I've seen over the years, the more niche an item -- and it doesn't get more niche than a very costly life-size collectible from a film the general public no longer cares about/barely recalls -- the harder it is to unload. The general public doesn't care. The much smaller fan demographic thinks it's 'cool' but either can't afford it or doesn't want it.
That leaves a much smaller pool of super-fans, most of whom, if they had the means and really wanted it, already have it. Not to mention the logistics nightmare of shipping something like that.
I'm not saying it's impossible, just more than likely a losing proposition one way or the other.
The thread-starter opened with "I think I have a problem" and in the very same thread is asking for opinions on whether to buy a life-sized item.
So either they're trolling or they have a problem that needs professional attention, not engagement from a forum full of enablers (intentional or otherwise).