In a perfect world...
If temp. outside is really hot (90+) comb damage will occur
while driving over bumps, etc. (wait 'til it's cooler if possible)
Screen off all the hive's entrances after total darkness has fallen.
Tape or staple all the boxes together. (lots of duct tape works well)
Lift the whole stack on the truck as one unit.
(rent a lift-gate truck)
Tie down the hive very securely.
Drive very carefully home and reverse process.
Place tree branch or similar object in front of hive entrance
when you reopen the hive in their new location.
(according to many beekeepers, this gives the bees
something to orient themselves to their new area)
You will lose/leave behind hundreds or thousands of bees
if you take the boxes apart in the middle of the working day