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Ah, didn't know 3 wasn't hydraulic. Arkose 2 is good, handled basically anything I've thrown at it.
You might want to factor in that the bars are pretty rubbish, especially for a bar end, I found they slope right to the end meaning the bar end feels miles away when you're on the hoods. Swapped the bars out for something with a finish horizontal to the floor and they're actually not too bad.
Definitely worth the improvement in braking, presumably they'd never get integrated hydraulic shifters at that price.
Depending on what you're looking for - I got Pinnacle Arkose 2 on CTW and its been great, not exactly a cx race bike but great fun and versatile. I think the 3 - which has STIs rather than a bar end comes under the £1k mark too.
Possibly also relevant @Dakin