I have done it and would recommend if want to do it on your own, think again.

Check out the following thread when someone else asked this:
http://aussiepinball.com/index.php?topic=6571.0

or "the adventures of your first pinball" thread:
http://aussiepinball.com/index.php?topic=6552.0


I have a horror story and it cost a mint compared to the machine purchase price. Mind you some of the guys who import the container loads get a much better (I think mates rates deal on the docks) compared to my one in a wooden box to protect it. Though I think I would get it from the shop that imports them and sell them from a shop front with a warranty and peace of mind.

This is a spreadsheet that I kept of my experience just for those thinking about it so you don't make the mistake I did.