The last kits I received from Haynes MacDaniel (Mac Shops) was just a few years ago. He did the Budd PRR 21 roomette Inn series car and the C&O / B&O observation Wawasee, Dana, etc as Ken has pictured above. Plus he did a LOT of other kits. Haynes was a pharmacist who did passenger car kits as an aside. Not sure of his current status. Last I conversed with him he lived in Florida.
His kits were one piece aluminum bodies plus the end castings and underbody.