@sun the problem with self hosted ai is that you (for now?) are bound to use some black box model trained by $MEGACORP or china.
3d printers should be do-able, aren't there some with open design docs?
drones largely follow from 3d printers imo, the remaining parts are off the shelf items and microcontrollers, not sure how those are realistically banned.
if i would have to add to this list, some means of long range digital communication is required. starlink isn't going to save us.