I think that Donald Miller is very irresponsible in encouraging Chris to ignore the local electrical regulations.
As an electrical engineer with 54 years experience I strongly advise Chris to hire a qualified electrician to do the job properly and insist that he fit earth leakage protection to the system at the house end of the supply.
Being in the UK I cannot quote the relevant regulations for him but the earth leakage protection is termed " A Residual Current Detecter" they are not cheap but it is better than lying dead on the floor of the shed.