Look for a used Bernadelli "Italia" or a higher grade one. You might contact their current US rep and see if they will still make on order for you.

Those aren't really "made to order" or "bespoke" guns in the old sense, but they used to let you specify barrel length and chokes and PG, 1/2PG or straight grip, which cost nothing extra, just a little wait. They may still do that, a nice service.