I've put chest as 44", I am 6' tall and 42/3" chest and it fits fine, it's not a tight fitting jacket anyway but it's very comfortable.

I'll send as Hermes courier as it will be bulky to send, a bit weighty too.

Any questions and I'll try my best to answer, I can't take a return on this as the post is pricey, if you're not sure then please don't bid.