I think you would be well advised to get a qualified electrician to do the work rather than a handyman. Changing a light fitting is not always a simple matter of reconnecting the cables as they were on the old fitting. I'd say about €200 should cover you.
For 5 x 11watt in 55watt out GU10 showerlights, I paid €100
For cables and bits and pieces etc, I paid €60
For Labour (Qualified Electrician (Nixer)) I paid €90 (Say 2.5 hours)
He even fitted the Mirror light