I'm looking to mod my NHT Power 2

Hello everyone. Years ago, I bought an NHT Power2 with two 500A modules powered by a third 500ASP module. I always wanted to add a 1000w power supply but never did. I just noticed that Icepower released a stand-alone 1000s module that I could use. Does anyone have any experience with them? I have opened the case before, and it seems like there is enough room to add the 1000S, use it to power both of the 500A modules and then create a 3rd channel using the 500ASP. Thoughts?