Before I purchase the TJM T-13 I know it comes with (I am Guessing 4" circular fog lights, please correct me if I am wrong about the 4") fog light cutouts and if you want you can have the TJM light kit added to the purchase. My question is does anyone know the proper size of the cutout? Maybe 4"? And my more important question is how much work should be involved in installing upgraded fog lights and driving lights in the cutouts? Possible PIAA's or Hella's. THANK you for any help, advice or feedback, it is much appreciated for this novice who plans to drive for the next year+ after my 2000 Land Cruiser is ready to go. Thanks for your time 