Does it look like this?
My friend has the v8 SC also, he wanted one, but he's sorta cheap. I was remarking how easy it would be to do in his car vs my wife's titan, or worse, my friends oval focus lol. Nice car!
Got a friend that is a teacher at the lexus technical center, if you mess something up, I can probably get the part

. I would buy a spare radio trim, unless it's really part of the radio (

) and work with that.
We also do some work for avery-dennison (make 60%+ of car interior accents), and might be able to get a 1x1' sample sheet of the burled fakewood overlay, if you can't find it on your own.