Second hunting the junkyards.
While searching for parts last month, 3 LS showed up within 5 miles of my home. All with good tail lights.
Keep in mind many yards are having an After Christmas Sale, usually 50% off pricing. I bought one tail light for my LS for $10, can't beat that. Last time I bought a light assembly for a minivan on RockAuto it cost $110. So maybe I saved $100 or 90% eh? Just looked at eBay and they are like $50 and up. So worth a look at the boneyard.
The tail light is easy to remove. Just open up the fabric covering over the light, remove I believe 3 or 4 screws, Unplug I think 2 sockets and out she goes.
Be sure to check what colors yours have. I think there are two variations with either red or amber turn signals.
Good Luck,
Jim h
Henderson