Steve Rasmussen
Nice use of the wolf pack LBD!
I bought it on a whim... never expected to use it gainfully so soon.  I was a tad complacent when I placed it on that board, but went into a panic when rotation was not as easy as imagined.  After lifting it up on the bench, I freaked out wondering how to get the susan under it... those wedgies certainly made it easy once I formulated plan F.



 SplinterGroup
.... 
Could you have extended your beam trolly throughout the house and parking area to assist, now and in the future? 
Though the workshop is under the house, and actually under the same room... being down under seemed a logical solution... however, drilling holes through the 250mm slab at intervals and engineering the gears to reverse lift seemed a tad daunting for my paygrade.

If your first cut is too short... Take the second cut from the longer end... LBD