Could be a custom wrap. With a copper wrap you can pretend the 18" is a Timpani. Ludwig made a gazzillion of those!
That's a deal for $400. Check the shells to see if they are 3ply with re-rings or the much heavier 6-ply Maple. Either way a deal. No re-wrap is necessary on those. Can't wait to see your post-pick-up-pics!
That's not a Supra though. Looks like a six lug knock-ff off some sort.