I believe there is 30" (close to that number, will measure tomorrow) between each bumper support bar on the sides. My core is 24" wide and with the end tanks, about 27"- 28" and it fits with no problem.
It depends on the layout of the new IC. I would think your upper IC pipes would work but you would need different lower ones as the layout may be different. (eg. not both on the same side like the stocker)