The front mount points are actually the rear ARB bushing tab/yoke/whatever bolts.
The rear holes are bore-your-own in the front lip of the crossmember. (holes in the guard will let you know how big the bolts need/can be for that. Get a good strong grade too, preferably with eurothane lock nuts at the crossmember)
When you're at it, make sure the car is up level front to back and left to right, then get all the bolts and nuts started before tightening any of them.
Once it's all tightened down, it will have a small amount of stiffener effect on the front end, so you might not want to go out and get all crazy before you feel it out a bit.