Nice clean setup

. I love how you ran the hydraulic hose under the floor and that post mounted manfiold; that's impressive. I've got the same under hoist screw-up stand. First pic I've ever seen of a Stinger on a MaxJax.
I did originally consider one years ago but then put everything on hold due to other priorities. The latest version of the MaxJax is stupid expensive here in Canada since it's now part of Bendpak. They want $4K for it now (was $1800 in 2015). For that amount of money I was able to get a full size lift instead and luckily I had the clearance for it.
The posts for floor plate style lifts are 9 feet tall so you could fit something like that in your garage. Where relative to the door do you have the the posts lined up (i.e. between the handle & mirror)? Did you have any issues with spinning concrete anchors? That seems to be the most common problem with MaxJax installs when they get torqued down.
Edit: I just noticed you're in Ontario. Whereabouts? I'm in the 'Shwa.
Lol thanks.
It does have rubber bumpers on the lift carriages to protect the doors but I still need to be careful. It's when I'm detailing the interior I'll have to roll it back so I can open the doors fully. Still can't get over how big this car is. My
Genesis Coupe was a go-kart compared to this thing lol.
The MaxJax requires a minimum floor thickness of 4" and 3000psi compressive strength. A lot of non-commercial lifts only require a floor thickness of 4" but obviously the thicker the better. My lift requires 6" of concrete and when we bought the house I asked the builder to pour a thicker floor in anticipation of a lift install.
Your floor may be thick enough. You'd have to drill and test a spot. You could also get a concrete company to come in and cut out the sections where the posts will be mounted and have them pour thicker pads and tie them into the existing floor with rebar. It shouldn't cost too much. Only downside is you have to wait at least 28 days for the concrete to cure prior to drilling it.