when i had mine done before i had the respray i took the bike to a sign writers they measured & replicated my exsisting decals (i had mine redone in gold to match my wheels)
Get the tank & fairing sprayed then take the panels & tank back to the sign writers for them to put the new ones on (bubbless) then get the bits lacquered , had the tank done this way & wished id done the same on the fairing as you catch the decal when polishing & you have to be careful
long winded but i hope this helps