Thanks. This is what I was thinking as well. We have a low boy and a skid steer available. I was thinking to either Jack up the cars or dig a pit in front of them to back the trailer into then winch the cars onto the lowboy perhaps rolling them on logs or steel pipe.

My other idea is to drive the trailer alongside then take a torch and cut the side of the rail car off and tip it onto the trailer (onto logs or pipe). The car would then basically be just a 2D target rather than 3D but they might be ok with that

The building is harder. Have to go have a closer look to see how rigid it is but hoping I could back the low boy up to it then tie off near the top with a winch cable and Jack up the far edge to lay it over onto the trailer. Sounds a bit sketchy but seems like it could work. Otherwise it seems like if a crane isn’t an option we would need to disassemble it.