Yes you probably can. I have a baxi bermuda back boiler with an old fashioned radiant fire front and am looking to replace it. Just google "baxi renewal firefronts".
This is just one link....
http://www.heatandplumb.com/acatalog/Baxi_Renewal_Fire_Fronts.html
Pricey - but not as pricey as a brand new boiler.
Tosh
April 2007