I need to build a hoist to work with my chassis table for setting engines in and out of cars I'm building... I want to use a round tube post mounted on a pivot top and bottom with a truss braced I-Beam with electric winch rolling on this track.
My question is this... My garage floor is just a slab, seems to be about 6" thick in the area where the post will be mounted.... How big and what kind of fasteners should I use to secure it to the floor?
The ceiling is 2x4 on 24 in. centers... What is a good way to beef it up and a good method for securing the top of the post to it?

About the heaviest I'll be lifting with it is around 800 pounds...