I am pretty sure I have the fastest set up ...Less than 2 minutes for senior gigs..

The fastest , lightest set up was My Roland V-stand, Roland BK5 and Roland BA330..

30 seconds for the V-stand..30 seconds for the BK, and 30 seconds for the BA330..

I have a big set up, that is just as fast...V-stand, G70 and Cube amp..another 30 seconds and I can have the second cube in stereo..

Both systems do not need a mixer..the G70 has it covered and the BA330 covers the BK5...No laptop is needed with the BK5..If I need to add the Laptop with the G70 ..another 30 seconds...that is less than 2 minutes , either way..

I don't use tripod stands, or fans...just a pedal or two for the keyboards..
And only 2 audio cords ..plus a mic cable..
A power strip for two plugs, sometimes a 3rd for laptop..