Please, need help Black rock shooter Genderbend :)

Hi, This is my first post here ^^ Last year i deceided to genderbend Black rock shooter, because i really love BRS. After i saw some pics, i felt too skinny yet, but after a hole year of training, i finally build some manboobs and abs xD This is my first time cosplaying, and i really have no idea what to buy.. I would like to have some advise at what i should buy I saw some stuff on ebay, but its not nearly as good as other cosplayers I would really appriciate some tips, idea's and links to items on what i should buy and trust. Thank you in advance :D