I'm trying to remember exactly what I did. I think I took the chuck off where is swings to lighten it up and make it a bit more balanced. That assembly needed a good cleaning anyway. I know for sure I ran the carriage in with the hand wheel and then put a sling under it there keeping it pulled up close to the machine base. I would have had to have a 3rd point to balance the weight which would have meant that I also had the belt cover off and ran a swing over there too.
Another option that is time consuming but I've used on a lot of other machines that I couldn't lift overhead is to raise the machine a little higher from the base using blocks between the edge of the machine base and the pallet. Once you get it high enough you can slide two longer 2x6s thru to support the machine with a stack of 2x4 blocks outside the pallet. Then pull the pallet out and reverse the process by lowering the machine by removing blocks by going around in a circle. I keep a very large stack of short 2x4s, 2x6s, 4x4s and plywood squares around for rigging machines. You can get those long 2x6s out early and make it earlier. Go slow make sure not to get the machine to far off balance. Can be done with a good bar but a toe jack makes it a nicer job.