if you buy a 4 post, also buy a jacking platform to do suspension work.
bendpac has nice ones that will go to 82'' and one that will go to 120''
you pay extra for the height, but i can empathize with you on hoists not going high enough
the bendpac HD-9STX will run you just short of $3k shipped.
me? i have 8'' ceilings in my barn
i work on my back on cardboard