@DonCologne You appear to have really dialed-in the style you prefer. I have a question, though. Are you naturally very square shouldered, or do you prefer very structured shoulders? I know that the vintage Oxxford suits you like are often that way, but I think a softer, more sloped and more natural shoulder would look good on you.
I have noticed a number of fits getting a lot of praise when I thought the jackets were laughably short, but then I remember that I'm old.Regardless of the temperature, I'm retiring the winter wardrobe completely this weekend (thought that happened last weekend, though). One just gets too bored wearing the same stuff over and over. [[SPOILER]]
I'm 6'4" and a similar build to you, I think, ETB and I've found SuSu that fits. I have the benefit of a store in Philadelphia, but I've also bought online. The measurements they provide for each style have been very useful. Not sure about to Ireland, but they offer free shipping and returns in the US. Worth a try.