I have done that with mine, is fairly easy to do, took less then an hour. Biggest problem was to find a matching screwdriver, the screws are sort of funny so my standard set did not work and it took me 3 trips to my hardware store.
The problem is, the BL2500 are off the market and the frets are very hard to come by, your dealer can get the item numbers of the frets and baffle kit out of the service manual.
I know somebody has an instruction paper, it was supposed to be in the members only section but I cant find it. Your dealer can look up the parts for you though ......
its well worth the efford .. I have my BL2500 for 11 years and love them more then ever ...
Cheers
JK
BS9000, BS2300, BC2, BL2500, BL3, Bl2, BS1, BV8, BC4, A8