I am glad that my favorite ovine has found congenial (and blue) grazing ground, and I note that we are both scions of the Commonwealth.
Tibor, as someone who spent considerable time and effort having suits re-tailored downward in size (only to soon thereafter donate them to charity), I cannot help but agree with Vox's assessment - your 40's style attire, with alterations, may make you look unhappily like a fullback (in uniform) if it is taken in to more current standards of fit without adjustments to the shoulders. Tread carefully.
We will see. I think I have a good eye and so does my new tailor. I think it will work out well. Only time will tell.