I have these copies available for Toyota & Lexus
The part numbers are as follows for V6.1:
00110-DVD06-CY GEN 3 = Lexus Part Number PT219-GEN23-01
00110-DVD06-GEN5 GEN 5 = Lexus Part Number PT219-GEN05-01
Contact me via PM for more info.
The first one fits the GX470 2003-2004
I do not have the Gen 4 disc that fits 2005-2006