I've removed a lot of stuff in yards and in a garage. I don't see your method being 30 min if someone is following your steps.
If you want a trans or engine out in 30 min through the top.
Cut fuel lines, coolant hoses, trans lines, ps lines and wiring harness going to engine plus O2 wiring going to cat at back of engine
Unhook TB cables if the car is not drive by wire
Remove two bolts holding trans cable bracket and pop cable off trans
Remove two nuts off motor mount under subframe and two nuts off trans mount on the top of the mount.
Unbolt AC and push it onto the subframe (or cut the hoses..but this is freon and you don't want it on you)
Unbolt two bolts from downpipe to rear engine manifold
Pull coolant overflow bottle and front engine upper mounts
Lift out
If you don't want trans..not it's easy to take off as all bolts are easy to get to.
Also.. maybe I missed it, I didn't see the trans to engine mount being taken off in your steps.
