You simply take normal goblin armor (from maybe lumbrige) and get some orange dye and dye it orange. Go and speak to the whitch in dreynor and she can make you dyes if you have the right ingredients.
Chat with our AI personalities
get yellow and red dye, use them on each other, and use it on goblin mail
Attack goblins or buy at grand exchange.
It is upstairs the tower in the goblin villlage, in a crate
gold armor is called gilded armor in runescape and is gained through treasure trails
get goblin mail (2) dye them blue and brown give them to the goblin general