I bet you could make the DWX725B workstation work for you.
The DW7440RS would have the wheels you need, NO they are not the "balloon style" but I bet you could make it work as well.
I have the dwx723 but I would like something with a wider stance for the planer. When feeding long boards they may miss the off rollers and I dont want the whole thing tipping over.
I may just buy the DW744XRS and then I could swap them out until I bought an additional stand. Sawhorses and plywood for now. I am running out of cash.