Your only problems are the copyright issues. Don't make it for profit and those should probably slide.
I offer encouragement, and wish you well in this endevour.
I'm not sure why this could bother other people though. A massive thank you to EA for:
- Producing great quality games time and time again
- Providing excellent technical support
- Never destroying any highly acclaimed studios for profit
- Never ripping people off
- Never wasting people's time