Or you could go on a road trip of sorts...
Commically, I agree. But, I don't know how much you've traveled lately but, the roads in America are somewhat less than desireable. We just returned from a 6,400 mile trip around the U.S. and, I'm not sure how or why, I've still got cabinets hanging on our coach walls. Or that I haven't developed a leak in my rusty '04 Itasca Horizon diesel fuel tank. Some of those roads were SERIOUSLY bad, mostly in Michigan.
So the OP, while making a more expensive choice by replacing his tank, is making a smart one. None of us likes this sort of thing. Unfortunately, it happens from time to time. One meets the problem head on and, make an informed decision on a course of action that will help in keeping the coach on the road, or in an RV camp, wherever is chosen.
Scott