Does your truck still have a lot of life left in it? Is the painted steel skirting starting to rust? Have Arrow re-skirt and remount your existing tank with new skirting on your good chassis. While they are doing that take a look at the upgrades available that add life to your truck. It will be like getting a new truck back when Arrow is done.
Upgrade your painted steel deck to a stainless steel glass bead blasted Deckline II.
Refresh your cargo tank by replacing that old, tired and corroded skirting with a new galvannealed Fleetline.
Create a new lifecycle by giving your cargo tank a new ride. Retire that old truck chassis and remount on top of a new chassis.