Had to get the next door neighbour in he used to be a panel beater we cut a small hole in the boot floor where the encapsulated nut is welded to the chassis, sure enough I managed to use enough force to break the weld on the frame so we are going to get an impact gun and hold on to the nut with a spanner but it also seems to be cross threaded. as for the one with the stripped head the neighbour said he can weld a socket to the bolt head and use an impact gun or big breaker bar