All of January term I was busy building my bumper. I am super happy with the results. I think it works better for me than any of the existing options. I kept everything as low profile and close to the body as I could while still having enough clearance for flex. After building it I can now understand why these bumpers are so expensive! More pictures, and a full write-up are in my
http://www.toyota-4runner.org/3rd-gen-t4rs/213656-99-sr5-highlanders-rear-swing-out-build.html, but here are the finished pictures.
I still need to pick up a matching spare, so for now I'm stuck with a fat ugly one.