Yep, I've been watching that guy on Ebay for a while now. I think he won a bunch of auctions on some other site and is now selling it all on Ebay. I bought two old boxcars from him, fairly nice.
I've disassembled/assembled plenty of Auel trucks - number one recommendation, do it in a plastic bag. Those springs like to fly away.
To disassemble them, just remove the springs, slide the spring plank out the side, rotate the bolster to 45 degrees, and the side frames should come right off.
