I think you may have it a bit backwards Ash, A full Made By suit goes in the 30-40ish range of course depending on the name. A full sewn by suit, leather, which is six pieces, I've seen sell from 40-70. But its the full suit that makes all the difference. I sold a 5 piece set similiar to this at the first Rares Festival on Atl for 10 to 15 mill, Sewn by Dark Thomas if i'm not mistaken to Tuefel. He may be able to shed a little light on this as well. That suit was also missing the skull cap which is all that it was lacking to make it a full suit.
Athelas [Treasure Trove] Mall, Atlantic