The first pic is the unit right out of the box. The handle was a POS and the weld broke almost instantly so I replaced it with a 2-stem handle of galvanized pipe screwed together (you can see the handle construction in the 3rd pic). That still had a bit too much flex so I had a friend weld the pipe joints together and it helped. The handle is held to the body with pipe clamps. We're talking NASA-level engineering, here :>)
The second pic shows the modifications pretty clearly. The unit as it comes has wheels on the back but not the front, since it's not meant to be moved under load. I added a wheel assembly to the front end. The front wheels are small-but-mighty casters, and they allow the front end to sit about 3/4" off the ground. What keeps the logs from rolling off the lift is the 2x6 assembly bridging the 2 lift arms. When the lift is all the way down and the wheels are chocked I can roll a log over the roughly 3" step and onto the lift assembly, and the 2x6 keeps it in place during the lift.
It's cumbersome to move the hoist when it's loaded so my usual procedure is to roll the log until it's roughly parallel with its final position up on the cutting cradle, get the hoist right behind it and chock the wheels, then roll the log onto the hoist. With a couple of pumps on the pneumatic lift I bring the corners of the 2x6 assembly a few inches off the ground and then can carefully scoot the whole shebang straight forward to my truck. I pump the lift to get the log as high as it will go (my Tacoma is a good fit with this lift. An F-150 is too tall for this lift, though there might be others out there that would work) and re-chock the back wheels on the hoist. Depending on the log size I can then roll the log forward onto the cutting cradle and trundle the hoist out of the way while I chainsaw the log into manageable pieces. Some of the material I work with is still too big for me to move safely solo, so for those logs I get help rolling them onto and off the hoist.
I really wish I'd come up with this _before_ I injured my back, but I'm sure grateful I have it now.