Can't see why not. It seems the case has more than enough room for the cooler. You would need to take the 3 rgb fans out from the front,but they could be used elsewhere in that case.
About using the "LL" fans,they seem to be somewhat optimized for cooler usage,but deliver less static pressure than the original fans which might mean that push/pull might be necessary for these fans to deliver the same performance as the original. This is something you just have to find out and test.