Floorstanding Speaker Stands - which one?

Hi Folks:
I'm expecting imminent delivery of a pair of Acuhorn Biancore 155 horn speakers (the ones on this home page):
www.acuhorn.pl

From experience, I've found the use of Sistrum stands to be of immense benefit - I've used a pair of SP-004 Sistrum stands on my Virgo II speakers to great effect - a virtual necessity:
http://www.audiopoints.com/sistrum.html
However, these new Acuhorns are very deep(60cm deep), very high (155cm high), but quite narrow (21cm wide). Does anyone have any thoughts on which stands I should use with these speakers?

Were I to consider staying with Sistrums, I'd probably need two of them per speaker, and then I risk having a very unstable speaker - I want to minimize chance of one falling over - even worse - one falling on the other like a domino ;-(

Has anyone used other floorstanding speaker stands or other isolation devices to good effect that would be highly stable, of great sonic benefit and preferably not break the bank?

You can see from my virtual system that the speakers will be on a carpet.

Thanks in advance for any advice!!
John.