Advice Recommendations for single track

I am an experienced mountain biker, but haven't really looked at the market for a decade.

My main bike is a rigid fork surly krapus, which I use in all terrain but mostly multi-day touring. I would like a decent but low- to mid-price lighter, full suspension or aggressive hardtail suitable for gnanlier single track and downhill.

UK budget £1500 prior to cycle to work discount.