Help with Sierra Rallye Gr.A

Hello all:

I`m modeling Ford Sierra Gr.A rallye.

I have related information about car, but impossible to find any picture of rear inner area, where fuel tank, spare wheel and fire extinguisher are.

Can anyone support me with any picture? I`m becoming little desperate.

I promise attach pictures of progress when forum administrator give me permission.

Regards

BorJacho