Fuel Tank-Squarebody?

[Factory Guy]

Getting ready to put a new fuel tank in the Old Truck (on the Drivers side, only at this time). Ordered it from Rock Auto and it showed up in days.

I was shocked how quickly it showed up unlike all the horror stories I have been hearing about it taking weeks to get the tank and weeks to get the sender. So my question, the gas tank on this side is near empty of fuel, so dropping it won't be a problem. I saw one post where a guy used 3m (2229-pic below) isolating strips to insulate the tank from the straps. I guess they use these in professional plumbing jobs with copper pipe to protect it from touching the concrete it is imbedded in.

My guess after 50 years of the gas tank being in the truck the fuel tank strap isolators (like tar strips) will be shot.

Anybody else got comments?