a pallet truck will give you a better rolling surface, but the hoist and legs of an engine hoist often give you more versatility. I've moved a few harrison m300's with an engine hoist, and you can drop the lathe onto the legs for good stability. Two full sheets of 18mm ply should do the trick, as you pass onto the second sheet move the first around to the front. A strip of 10mm ply under the joint will stop the sheets seperating when the wheels go over the joint.