If you found a low mile, good condition 20 year old Cummins dually in Quebec, buy it.
95% chance whatever holes you’re trying to describe won’t matter.
100% chance it will be better than 95% of the rest of the old trucks you’ll find up there.
Don’t worry about it.
Unfortunately, it is not a Cummins, it is a gasser V10.
Also, it is not in good condition, the front fender are damaged near the lower part and the cab corners are perforated. I got quoted bettwen $4 and $5 gran for a repair. Too bad, the engine is top notch and the ATX is ok.