jumper/socks/cap for a costume (Dublin city/south city)

[ReUser_D4]

Hi all,
I am looking for :
sleeveless jumper (~medium)
knee high socks (~UK7-8)
flat cap

plain or argyle/diamond patterns
Trying to achieve 20s-30s sporty look (it doesn't have to be exact)

Can collect Dublin city / south city

Thanks for any help