Banshee Mask conversion

As you probably know by now, Banshee Masks are awesome in the new Eldar codex: Causing fear and denying overwatch.
So it's only logical to want one on an Autarch, right?

The problem is that Games Workshop, in their finite unwisdom, released a new plastic Autarch with only Mandiblasters, and only left the Finecast Autarch with Mandiblasters in the store while letting the one with a Banshee Mask drop out. That means there is effectively no Autarch model with a Banshee Mask available.
And since the heads of Howling Banshees are molded onto their bodies and have a lot of hair around the back of their neck, there is no easy conversion without Green Stuff with them either.

So the big question is; where to get a helmet that looks like a Banshee Mask and fits easily on an Autarch?

Perhaps instead look at how to convert a Banshee into an Autarch? Then you have an appropriately posed model with the requisite mask and you can simply add things to bling it up to autarch proportions.

Ask your runes monk. This is the dark city! ;-P

Cast one using an instamould bar?

Found something from Ghost Miniatures:

"Herald of Death", alternative Jain Zar/Howling Banshee Exarch.

At $16, it's even cheaper than GW's ugly recast Jain Zar.

Surprisingly though, their alternative Autarch also comes with Mandiblasters only.

To me the death jester type mask, which comes in the plastic harlequin troop kit, looks like it could incorporate a speaker grill.  There might be some confusion however if you were actually using another death jester in your army.  Then again he'd be carrying a big gun - your autarch won't.