if he spent around 150 hours over 6 months (1 hr per day). then that is 9.60 ish per hour. which is ok, but with all the experience and probs extra time (150 hours is an estimate). his hourly rate should probs be a lot more the UK minimum age is 9.60 per hour and 1420 euros is about £1250. after tax which is usually about 20% it will go down much more.