You can make a gantry from wood and also tie to several rafters to insure
that it won't come down.
Aside from that, 4 brawny guys that have more muscle than brains will
together be able to lift the whole machine up the necessary distance.
You already have the machine up far enough that you should be able to slide
an engine hoist under the center part and, if it will go high enough or you
tie low enough, you will be able to lift it from the front or back high
enough to get on the cart that way. Just make sure that you lift from the
center of gravity.

--
Bob May
Losing weight is easy! If you ever want to lose weight, eat and drink less.
Works every time it is tried!