Key is to crate it so nothing can move around. Make sure the base is very well supported on the right part of the pallet too - if it is only on the 3/8" board the legs / whole thing could break through that top part of the pallet.
The base isn't done in the picture attached - 2x4's were built up around it and it was secured so it couldn't spin too.
Just make your own out of a pallet + 2x4's and screws imo, only takes 20-30 minutes.