Obsaleet, It would be pointless for you to try to make a five HP three phase motor run in a single phase enviroment. The attempt would require either an "add-a-phase" or a VFD, either of which are much costlier than any five HP motor I know of.
The only reason I know for attempting this is if the motor is part of a fairly expensive peice of listed equipment. If that is the case then you need to tell the owner in no uncertain terms what you will need to do to install it properly.
If that is not the case buy a new motor, it will be a lot cheaper.
