seat belt part & light

[vhalstead@linkline.com]

Hi List,
I am almost done with restoration. Does anyone
have info on how to locate 2 missing parts for
1974 TRIUMPH TR6: 

1. "female" part of seat belt, the part that the
  buckle snaps into, the part with the red/orange
  press button that attaches to the floor for
  DRIVER SIDE.
2. warning light for dash "fasten belts". 

any help in locating these two parts would be much
appreciated. I am in los angeles area. 

vhalstead@linkline.com