Evans have the
Cooper Monaco on offer at £1000. It's about the only bike I can find with the 11-speed Alfine hub (unless you know otherwise).
Anyway, I wouldn't use the drops and would swap to flats. That would necessitate several changes, I suppose, not just the bars.
The shifters would need replacing, and separate brake levers would be required (wouldn't they?).
Would the disc brake calipers need changing or could they be used with MTB levers?
I'd have to experiment with bars and stems too.
So, what I'm wondering is what I could expect to flog the Versa shifters for. I'd also ditch the Brooks Swallow saddle. I think the sale of those could well finance, or go a long way towards, what I'd like to do.