I think what I would suggest Is that you would have him at print a reasonably large full-color print the width of the printer and perhaps 24 to 36 inches deep.
This would make sure that all the printheads are working, the lines are open, and that within hours of shutting the printer down you are ready to ship it.
Then have him do the standard head cleaning and docking procedure for the machine, and have him make sure that the print head is securely docked on the maintenance station. If he happens to have the original shipping clamps that came with the printer they should be attached to secure the head in place to prevent any movement of the head off of the maintenance station while transporting.
You did not state whether you will be picking this up or having it shipped by a common carrier.
if you are going to transport this yourself personally in either a truck or a closed trailer all I would do is secure the ink cartridges in the machine with some tape and then move the machine on its original stand if possible into your vehicle and securely strap it so that it will not move.
If you are shipping it by common carrier, there are additional steps that you must look into and be very certain that they are followed meticulously.
Two years ago I moved a 64 inch Miamaki JV33 digital printer from Tampa Florida to Northeast Ohio with absolutely no problems by following the above procedures best of luck with your new purchase.
