Suggestions please gents.

I currently have the B&W 683s which are fine loudspeakers, but my front end / amplification could do with a little more on the transducer end.

So, with £3k-ish to spend on used floorstanders, what would you suggest? So far my search has yielded the B&W 702 S2, the PMC Twenty5 26 and the KEF 203/2, but I’m open to more ideas.

The room is 442sqft room so a fairly large space to fill, concrete carpeted floors, and I have a sub already.