The same bike is 855 at Chain Reaction currently. Also could consider the 2021 Nukeproof Scout 290 Race at 999 (better wheels, grips better than your additional ones there and I think the fork is slightly better - Recon RL vs Recon RL Silver - but they may just be the same thing).
Worth getting a longer dropper though for sure, 125 is short by todays standards - run a 170 on my main bike and it could probably fit a 200mm if I wanted. 31.6mm is the correct diameter though for either bike above.
Stock bars are decent enough and can be cut down if too wide.
Edit - with a £1250 budget, you could look at the Sentier VR at £1125. Marzocchi Bomber fork is a leap above the Recon, comes with a dropper fitted, better drivetrain too. Only seems in stock in 275 currently though.