These measurements are usually my fit for a coat and I'm a 44R-L (I know because I was eying this piece about a week ago - just can't justify the purchase right now as I've got too many coats, esp. grey herringbone).
You could always pull the trigger on it though and then tempt me to grab it (at a lower price) if it's too big.
Great lookin' coat.
I'm really trying to avoid being the reseller that always sells at a loss.
I'm not saying it hasn't happened, or won't happen again, but I'm trying to control for it a bit better