I'm just saying that if your terrain works with it, just buy it. Saves the body. It breaks down into small pieces.
On that occasion that you are super full, you could put parts of it in the feed tray, possibly the main body minus the wheels. The side stakes will easily slide into the chips against the back door, and the handle as well. Two wheels can tuck in the rear of the bed, or somewhere.
I don't weld. Its a time commitment for me to go to my welder, at a mutually workable time, drop the chipper and AT, then come back and pick it up. Since I've gotten my AT, the one day when we didn't have it (put on ground only job that Erik thought I'd climb and piece out, but I largely felled), we could have moved some padding brush and bunk logs to protect a water line and I would have felled the last and biggest tree, and had a significant job done in dry weather, no wind. Instead, we have a return trip on Friday, 40 miles round trip.
Now that I have it in hand, I'll be able to better figure out how to mount it on the chipper, then have to find the time. In the meanwhile, I've had good experience, and high hopes for it.
For my area, I could easily handle a wider cart. Stein is designed around tight English access. That's my biggest complaint. I might get a block welded to the other end of the upright round rod with a different angle that would allow me to flip the stake over and have a different stake width. (the stakes are round rod with a block welded on the end. the block is what slides into the frame).