1.) I pick the whole unit up with forks by strapping side to side, to move it, or clean out bark from under it. I started with a couple I-beam saw horses with a sacrificial cut table laid across them, then built this when I got the fork lift.
2.) I have a medium size pet crate which is just the right height that I set my saw on between cutting logs. Then move the six cut rounds by hand. Yep. 5,800 lbs. per cord. However, the round is at mid thigh height, not on the ground, and the trailer is the same, mid to low thigh, stacking two rows deep, 2 1/2' high x 8' long, about shoulder height, or a 1/2 cord. The splitter is on the opposite side of the trailer, and the real beauty of the SuperSplit it the mid thigh height beam and table.
The draw back is that the process is slow. The deck has to be loaded with 1/2 cord of logs. Easy, but slow. Each log has to be rolled forward and slid sideways to the end stop. Might go quick, might take several minutes to move logs and make safe, if the deck is full and logs bound on each other. Sometimes logs roll off the front of the deck, in which case they are cut on the ground. Starting the saw and making five cuts, six if the end needs trimmed, goes quick even if placing a plastic wedge in the saw curf. Shut the saw off, set it on the pet crate, stage the rounds. Very little time is spent cutting six 16" pieces. I refuel every 1/3 cord, sharpen every cord.
I think adding pipe stops would be safer. I also think the logs would bind against them and cause some headaches themselves. My solution has been to put less on the deck in the first place. Hydraulic log decks do have stops, which also aid in straightening the log parallel to, and prior to entering the log trough.
I would love a processor. They are now available to rent, about sixty miles from me. It is simply unaffordable to buy at this time, and renting is not cost effective when I calculate cost per day/cords per hour and cost of logs. But that is not the real reason for not renting a processor.
If I process and pile splits up off the conveyor, I'll end up with a pile of unsellable, moldy, wood. I've been down that road...