Just thought I'd mention this.
I just removed the fuel level sensor since it failed.
The rubber fuel hose that is inside the tank (fuel return) was so perished it fell to pieces as it came out.
Thousands of tiny pieces of rubber inside the tank.
It is the rubber outer sheath that failed, the fabric core still seems to be viable.
It is still attached inside the tank (what is left of it) and not sure what to do.
Not the easiest thing to get at...