I was looking through a wrecker the other day and I found about three sets of the the old flat style TA22 rear lights. I reckon they had all the chrome bits. One had one broken mounting stud but would still work.
I also found three of the rear petrol filler flaps that suit these lights complete with springy bits if I remember correctly.
Anyone want 'em?
I don't know about prices yet, but I can find out preatty quick for you.