A couple of points. Not sure about the fate of 03 but when two cars including D&RG reefer 79 went off the edge at the Ames slide in 1923, the RGS burnt the bodies so that passengers would not be alarmed at the sight of them three-quarters down the slide. I wonder if 03 suffered the same fate. The metal parts will still be there of course.
When we stripped flanger OT's top deck we found not scrap iron but a double row of evenly sized iron blocks, two rows one above the other. The weight was estimated was around 100 lbs each. After rebuilding OT weighed about 33,000 lbs. Was 03 big enough to carry three times that number of blocks, that is to say 1000 of them? I have my doubts.
Mark K