In reply to franksnb:
>
> £750 is a lot of money but I think I have a tent fetish soo..
My tip (assuming they still do this) is to go to a Tiso 'club night'; there is 20 or 25% off on one of these nights.
I bought my Soulo this way, still expensive after the discount, but worth it and easier to justify.
I have two Hilleberg tents and my next will be one too. I'd never heard of the brand before, but as getting to speak to someone at Terra Nova was mission impossible, I had to look at other options for my expedition tent - Hilleberg was suggested to me and what a blessing that turned out to be.
To quote the link you posted about the Allak; "in other words, an ultralight Staika."
The Staika is suitable for 8000m use - that should give you an idea of what sort of tent you're buying.