Very similar to another model I found. The DR has a little more sheet metal on the side, but priced higher
www.omegastores.com/omegasplitters.htm
and electric and gas models at
www.ramsplitter.com
The Mantis is a 5 ton for $458 (399 + 59 s&h) and looks like it might roll and store easier.
Just do not know if they are powerful enough.