As the OP, I thought I'd give this update.
Ordered 4 different ones on Yoox and settled on a 3b PRL Made in Italy (Corneliani probably) w/ brass buttons for a shade under 300. Currently at tailors right now getting sleeves and waist nipped, hopefully will have fit pics in a couple days.
Also, just as a related question, out of the 4, one was a made in spain PRL blazer. Out of curiosity, anyone know when that's from and who the maker is?