Is it possible to put 8" Z bars and a headlamp visor on my harley davidson iron 883 without raising the tank?

i have been looking all over the net for a picture of a harley iron with a headlamp visor AND Z bars (8") but i cant find one, is this because that it is not possible? also i would like to know wether i havto raise the gas tank in order to have the Z bars on. any help would be greatly apreciated. and sorry for the spelling :P