Toyanvil
Gold Level Sponsor
Where in Ca are you, I am in Bakersfield. Here's a great show, I go every year http://www.queens-english.org/The California Association of Tiger Owners makes just the part. It's part # B38 and is called a "Under rear bumper license plate and light holder". Unfortunately, you gotta join the club to buy the part. Membership is only $35 and the part is only $27. Not bad considering one part does it all.
I bought it and I'll post a picture of it when I get it.
Also, they pointed me in the direction of local people who will help with my conversion. Gotta love Southern California.