Welp. Haven't sold anything on eBay in a LONG time (besides one of my cars) due to time restrictions. But they had a listing special Wednesday, so I decided to throw a few auctions together, and clear out some stuff, including a strut tower brace from a Cutlass convertible. Yes, they fit on the TGP/TSTEs. I have one on each of mine.
Here's a list of the auctions (http://motors.search.ebay.com/_W0QQfrppZ50QQfsooZ1QQfsopZ1QQrdZ0QQsassZInCarNationQ5fParts)