Anyone convert yout tri frame into a road setup?

Could you please tell me what exactly do I need to buy in order to convert my CANYON SPEEDMAX AL into a road bike?

http://www.dqdev.net/blog/canyon-tri-2-road.jpg

Is it technically very challenging to do the conversion?

I have to do the conversion in order to participate in a 300Km race: http://www.cyklavaettern.com

Thanks in advance!