Yea Green is right. I sold one a while ago for something like 60mil in trade value, and that was to a reseller. So it deffinatly can getch 75mil range if not more. 20-30-40mil, horribly undervalueing it.
To generalize and say "non stat enhancing event clothing" sells for cheap, is a real bad assumption. I sold my Royal Navy Boots for 80 something million a few months ago. The "ostard skin boots" I just got are about to be sold for 175-250mil in gold/trade value (depending on what you price the items im receiving at).
So while there are a bunch of these shirts out there, as there were with the navy boots, (not so much with the ossy boots since theyre real limited if not 1 of a kind). Dont count off non-stat event clothing as cheap stuff. You can absolutly clean up.
Not to mention "Royal Guard Artisen" apron. I gave mine to a friend, but that is one of the most in demand non-stat EM item clothing. A lot of people want them but they are tough to find because people hold onto them. They can fetch over 100mil easily right now if you were selling.