That's pretty typical of many of the installations I've seen of those type of motors. No filing of the drop-outs to get the axle in properly and no torque arms. His battery is upside down and his tyre is bald.
I don't know if I feel dorry for him or not. I think, considering everything, it's probably better for him and everybody else that he stays off the road on that bike. I don't think he's the sort of guy, who would accept a more docile solution, but who am I to judge? Would he be happy with one of those £360 Argos bikes? What do you think?