Cheap good English show jacket

Hi guys I'm looking for a relatively cheap but decently put together English show jacket. Was looking at black so it can be used for dressage. I don't show often which is why I dint want anything exceedingly expensive.

I'm located in Aus but happy to import.

Sizewise I'm quite big in the bust quite short about 5'1 and a full figure not what I'd call large but bit of a belly ( aus size 12)

Also happy for second hand.