Opinion wanted...garage hoist hookup...

You have a bit of over kill which is niece.In my garage I have a piece of 2x3 steel tubing running the width of the garage.Under the tubing on each end is a section of C channel welded to it.The support is 3 2x4x8 pieces of wood screwed together which fit into the C channel,which is coverd by a bracket screwed to the wall and the beams in it.Is it strong,lets talk about it.I had to replace a motor on celica GTS car and needed to remove the assembly from under the car,unbolted every thing and hoisted the car up on a chain block and removed the engine and reinstalled it the same way.Removed a ford 460 complete with this set up and left it over night just to see if the walls or bar would bend,no movement at all.Your brakets are 10 times over kill,and if you install a 2x3 steel square tubing with .125 wall thickness and have a hook welded to it,or some sort of pulley or come along,your good for life,Mrmopartech