Hi Kieran,
Nice choice! You can indeed change the fog lights to LED's. They are H11's I'm pretty sure as I changed mines out soon after. There is also a small running light in these units which is lit when the main headlights are off. Can't remember the size but I couldn't change it out without removing the fog light completely and is a PIA! I usually leave the sidelights on all the time so that the LED C Light is lit instead anyways.