The general idea was a tablet thing with detachable modules.

The permanent part of the tablet would be the HDMI driver, buttons, & a 12V splitter.  The splitter feeds the LCD, confuser, & flash.

The jetson + buck converter would be a detachable module which also went in the truck.  The IR/servo board would be another module.  The webcam for rep counting would be a module.  All the ports could be recessed from the side.  There could be a right angle HDMI connector.  The battery would have to be external.

The framework laptop uses sliding rails with a spring loaded button to attach modules so that would be the goal.  The modules would slide in from the rear & PLA springs would lock them in.  There would be a big rear panel covering everything.  It would swing on a hinge on top & double as a stand.  The stand needs to work on wood as well as carpet.

An unsatisfying 1st attempt looked like lunchbox or a suitcase.

The dimensions are manely imposed by the battery & heat sink.  They bring it to 48x363x215mm.  An ordinary laptop would have been half the size.  It'll definitely weigh less than a laptop but be flimsier.  The only advantages are the cost & reuse of the module in the truck.  A laptop would be over $1000 but could also train the network.

The mane turnoff from a laptop is the amount of money required to do just 1 thing & not support the truck.  It's just needed for rep counting & model shoots.  Manely, it's just rep counting.