I have always changed and rotated my own tires and my floor jacks provide enough clearance to avoid fender damage so I've never used pucks.
Regarding the air pump and sealant, I no longer carry the stock setup as it took too much trunk space. What I carry now is an aftermarket air pump and a plug kit. The aftermarket pump is significantly smaller than the OEM and is adequate to the task, if a little slower and louder. One of the cars has a bracket that I built in over the battery for the pump, but the other I just carry it on the floor behind the driver's seat. Both plug kits live in the net storage space behind the seat. I do not like the use of tire sealant because of the damage it can do to wheels and TPMS sensors and the mess it makes for the tire installer when they break down a tire that has been sealed with it.
I have considered, but not purchased, an extremely compact scissors jack to facilitate the plugging of the tire. Fortunately I have only needed it once, and that was within a half-mile of home.
Sky NA 2007 Midnight Blue
Sky RL 2008 Carbon Flash - Naked