After reading various threads about the progress of SuperChargers in the US I thought there might be a solution using temporary portable units that could be built on an assembly line and transported on semi trailers to a destination in NA. After reading some more posts I discovered that Tesla has already built a few for a few locations. It seems to me that many more locations could benefit by having two or four bays that were basically self contained and quickly installed. I would think that the bulk of the engineering has already been done and manufacture and assembly could be feasible (possibly utilizing some of the unused factory floor space) in the existing Fremont facility. I am not an engineer or electrician but I wonder just how long it would take to get this started (90 - 120 days?) and how long would the actual assembly take from assembly start to finished unit on its pallet, ready to ship. Would it be reasonable to expect two or three days from parts bin to out the door? At that rate how long before a thousand units could be in the field. Say 100 units a month. 1000 units built and installed in a year? If no local construction were required except erecting a conduit mast that would allow a service drop from an already existing mall substation, a unit could be operational a few days after a permit was issued. I don't have any idea about the power requirements of large malls but a pair of SuperChargers would not be much of an additional load, I would think. Rollout could occur at a much faster rate and operational (temporarily) until a permanent installation was constructed. These could also serve less population dense locations, and with usage monitored via connection to the internet it would be a way to determine the best distribution of SuperChargers as demand increased (or didn't). I am puzzled why the first cross country SC chain was not direct from LA to NYC (via interstates 15/40/44/70/78. I am sure it is on the way but I scratched my head at the route through Wyoming and North Dakota in the winter. I also think Tesla is missing an opportunity to inform more potential customers by using a kiosk video player as part of every SuperCharger location. So what do you think? An idea with merit or too much time spent dreaming of a second generation Roadster (R2) in the garage?