Your clients only really see the price. As a rule of thumb charge what they are prepared to pay.
Charging 2K+ would likely get a bad response, particularly in today's climate.
I would setup a WordPress theme and charge a couple of hundred. Get them on the monthly support plan so they can pay you a little money to maintain their theme and cover their domain and hosting. This would be anything from 10 - 20EUR per month.
Do not work for free, and do not custom code if a client is not prepared to pay. Friends and family are often the worse clients, you've been warned! We've all been there.