Anyone know where I can buy a Chesterfield coats in SYD?

I'm located in Sydney and I saw some of these coats available online on Mango and Charles websites. I really like them but unfortunately I think they don't have physical stores in SYD

I'm an awkward bulky size - 5.5ft, 80kg - so I prefer to buy things in store as most standard sizes simple don't work for me and I end up retuning things.

I saw a post on this sub from years ago about a Uniqlo coat which would have been perfect but unfortunately they don't sell that style anymore (at least not when I checked at the CBD store today)

Unfortunately my budget isn't really that high - around $400 or less as it's more a winter piece that I won't be wearing all year, especially in Aussie summers.

Thanks all