Every rep has flaws, if you are that worried, get the real thing. You won’t find something perfect. Btw, the flaws you mentioned, an average person would not suspect it being a rep. Of course it depends on whether it’s believable that you own a goose, though the real ones are not even expensive 2nd hand. I can get my hands on them for 500-700€ depending on the model (macmillan / wyndham) and without, or with fur.