Question about changing mains with powerpass?

Hey all

as you all know lost ark is a pain for choosing a class and i was focused 100% on maining bard, however i miss my gunslinger also, i know you can make alts etc

what if i level bard to 50, get the powerpass and use it on my gunslinger and then GS would be my main

my question is am i loosing anything item wise? i know pets and mounts are account wide as well as engravings

anything i can’t transfer over?