Main dealers usually subcontract their body work to a local body shop so there's no guarantees if the repairer will be any good.
My advice is find out who your local Ferrari dealer uses for body repair and contact them directly.
Try calling the the Ferrari dealer and asking them, they will usually be forthcoming about who they use.
My guy is Steve @ Autotec 2004 in Andoversford, he does everything from multi million dollar Classic restorations to Ferrari Enzo's so he's good for a Nissan.
09 GTR Black Series:
Cobb AP \ Cobra Imola Carbon Technology Seats \ HRE Comp 90 Wheels \ Titanium Nuts \ Michelin PS2 Tyres \ Performance Friction Discs/Pads \ HEL Brake Lines \ KW V3 Clubsport Coilovers \ Stillen ARB's \ KK12R Under Construction At SVM \
"If it doesnt scare me shitless, it doesnt command respect, if it doesnt command respect, its not worth driving." GTRSTAR 2010
"If it breaks the bank, I lose the wife, if I lose the wife, I've still got the GTR" :D GTRSTAR 2011