Repair resources

Hi all,
I just came into possession of a pair of B&W DM14 speakers. One looks fine, the other has a damaged middle driver.
Was initially looking for a stock replacement but am open to upgrade suggestions.

Saw some decent reviews on the DM14s from the early '80s.  
Anyone have experience with them?  I would love to hear about your preamp/amp/source/etc. setups.

Thanks everyone!