I dont know how much it matters how the base is constructed by the way I did it,because sliding the stove sideways IS NOT a good idea no matter who's stove you have--it simply stresses the legs/frame in the wrong way and was not intended to do this by design...
Simply call your local wrecker service and have them lift it off your trailer and onto your pad with the boom of a wrecker.
My stove and the way I transported mine made it a little more complicated---I transported the stove in the bed of my F250 4x4 truck, plus my stove did not have a eye hook. If you transport your stove in the back of your truck bed (expecially a 4x4 truck), make sure you tell the wrecker service so they can make sure there wrecker boom goes high enough---A common 1 ton wrecker boom usually does NOT go high enough to lift the stove out of the back of a truck bed--in your situation if your trailer is low enough, it should not be a problem what so ever......My other problem was my stove did not have a eye hook---so I had to put a chain into the stack and fasten the end hooks on the lip of the front door opening--then the chain loop was hooked to the wrecker boom's cable hook--raised the stove up and pulled the truck out--then backed the wrecker up to the pad--lowered it down and 15 minutes later--my unloading problem was over.
Cost me $75 and the problem was eliminated pretty easy.
hope this helps...
JBC