Wow, that's bad luck!
![Frowner](/static/images/graemlins/icon_frown.gif)
My best suggestion would be to have new ones made to fit your trunk. There's room for more volume compared to the original tanks, if made correct.
I believe the level sensors are equal to those on the Pantera, so new ones are available. You also need ventilation and tipover-valves. Mine are a Ford-product, but I don't know from what model. Sorry.
I will look in my files for pictures.