To legally tow doubles you must have a fifth wheel and then you could legally tow a trailer or flat tow a vehicle behind it. You cannot tow a ball trailer and then another ball trailer. You also must also have a special permit from the DMV.
no special permit here in Arkansas but there should be
i would come closer to flat towing the yota behind the chevy with the popup hooked to the yota
but like i said if all goes well i'll come by and drag it up there for ya