I always intended to mount the radiator on the underside of the case with the fans inside (minimal loss of expansion slots).
As for moving the res forward, that's impossible. If I move it forward I will be going under the HDD bays with the barbs and I don't want to hack that up nor do I want the barbs coming up right in front of the expansion slots. I will have to take about a half inch of plastic away from the rear case feet so the radiator will slip in between them rather than the feet needing to be replaced. The only down side to this is the lack of strength in the case feet but that's nothing some metal strip can't take care of.