To reply to my own request....I think that I have found the excellent OE advice that I was looking for.
Here it is for anyone else who is interested:-
On shipping.... prosumer class machines survive the journey via UPS or FedEX by professional packing and some internal considerations to the the construction of the machine. On the professional packing, this would be form fitting styrofoam inserts or Instapak foam cocooning the machine in an inner box, packaging the loose bits in a smaller separate box (like the portafilter handles, baskets, etc.), and double boxing with isolating foam corners or Instapak (both preferable) or peanuts between the inner and outer box. In regards to internal considerations, I mean things like boiler mounting brackets, frame construction methods, constrained rotary pumps and the like being designed to withstand the rigors of shipping. A lot of these internal details were not taken into consideration on commercial machines as they were never meant to be shipped this way. They are also, bigger, heavier and more expensive, so freight is a better option.
Thanks CSME9 for your help..