Hoist and lift options
2 post 4 post Scissor Portable Low height ceiling clearance Atlas kwik bay 7000 Summit st7530 Max jax Quickjack Happ90 Everlift 3.0 Levant a bp-6
Ez lift (powered by drill)
http://www.bendpak.com/Shop-Equipment/QuickJack/BL-5000.aspx http://www.gregsmithequipment.com/Atlas-Kwik-Bay-7-000-LB-Mid-Rise-Lift
http://www.autoquip.com.au/upl/website/vehicle-hoists/BellyLiftHoistSummitST7530.pdf
http://holman.id.au/HAPP90/ http://www.rx8club.com.au/forum/viewtopic.php?f=2&t=1006
http://www.raceramps.com/index.aspx/ImageGallery/Index?productId=45
http://www.alemlube.com.au/product/everlift-3-0t-mid-rise-scissor-lift/
http://www.alemlube.com.au/product/2-5t-mid-rise-scissor-lift/
http://www.bimmerfest.com/forums/showthread.php?p=6787468&posted=1#post6787468
http://www.jackpointjackstands.com
http://www.flyinmiata.com/index.php?deptid=&parentid=&stocknumber=35-70050
Concrete thickness, strength. Concrete level? Uncracked? No bolts nar edges? No holes drilled through the under-concrete plastic (moisture seal?). Not drilling into the steel reinforcement in the concrete.