Good Preparation goes a long way, I have a big box on wheels that contains absolutly everything I need , I load it into the back of my van and I dont have to think about forgetting something , it takes exactly 10 minutes and im off. I have already checked everything on the numerous previous nights of bad seeing.
When I get to the site it takes exactly 10 minutes to set up without polar aligning , I dont do plate solving , I rely on good polar aligning and shorter subs plate solving and so forth , I make sure that I can perfectly polar allign and that the OTA and polar scope are colimated and perfectly alligned to rule out any time consuming problems .
When i get to my regular site it is a paved surface and I have put 3x tiny circles on the pavement for my tripod so it is pointing in the right direction , also the legs are left at the previous correct position so I dont have to worry about leveling the mount.
When you are at home practice setting up in your garage/living room and then practice with the lights off you will be surprised how much time you will save in the end. When you get home or the next day prepare for the next outing , charging stuff etc. dont leave it until the day you have to go.
I have an advantag in having one box but it weighs 65 kg !!! but its on wheels and the light end weighs 28 kg.