You can get a video camera with a probe/cable for $20 or $30 online that will work with your Droid phone or laptop computer. I got one to use as a bore scope for around $12. I don’t know if the quality is good enough for detailed bore inspection but it’s got a light and mirror for looking at right angles - need to get time to try it out on a barrel.
If your tank is between stringers and foamed in like mine, it didn’t shift. It would have to rip out a stringer to shift far enough to cause a list.
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 Scott, Portland, OR '85 V-20 I/O, Merc 170
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