When i found that 4 flaking rockers had screwed up a camshaft on my 748r,I spoke to Andy Johnson/Joynson at DUK and he was really helpful to the point of DUK stumping up for the cam and rockers (even though the bike was out of warranty but with DUK service history)Might be worthwile giving him a call at DUK and seeing what he has to say about it.
Haven't got the 'R' now,got a '04 749 Dark,so have been watching this post closely.
Cleaned and stripped my calipers and pads a couple of weeks ago and would have to say the design of the calipers lends itself to muck/crap whatever collecting.But after a good degrease and some copper grease,they are back to their best again!!
Hope you get a result soon as 4 months is taking the p@ss.
But I waited 2 months for Ducati Italy to do a production run on camshafts!
Hang in there and don't give up,i did think of going back to a Jap bike but in the end i couldn't,just love the noise and image(dont like the service costs but Woods in Abergele are fantastic and friendly)
Pete