HF still sells this kind, at least according to their website: http://www.harborfreight.com/500-lb-capacity-hydraulic-table-cart-60730-10041.html
It's easy to modify and relocate the release. I removed the handle altogether, cut the release cable down to where it ends at the hole where the cable originally comes up through at the base to go up to the handle, and tied the cable through an old flipper bushing for the release handle.
I like this kind because you can raise and lower the game to any level between the highest and lowest extremes. I think a lot of pinball lift carts just have a low and high and nothing in between. The lift cart can allow you to remove the legs and lower the entire cabinet to just a few inches off the ground for easy play field removal and re-installation.
Also, if you lower it all the way, you can easily tilt a legless game up onto it without much work. The lifting is all done by the cart after that.
Without the handle installed, I generally have to be careful when moving because if I pull or push at the cabinet, it can slide on the cart.