1000D Radiator Question.

[FreakyFreak87]

Okay, from looking and looking, it looks like the 1000D can support two 360 up to 60mm on the top with the optional tray, and up to two 480 up front up to 60mm both can be done in push pull if desired.

But can you do a push pull configuration successfully using the 420mm radiator up to 60mm and then the same configuration up front? I can't seem to find a good answer and I'm wanting to run two 480 up to 60mm in push and pull to add to the loop, but I can't find a clear answer. 

Can this be done? I'm going with soft tubing and the top 420 is a crossflow, so I have multiple exit options on it to the radiators if they were up front.

But that also makes me wonder if there's enough clearance between a push pull up front with 480s at 60mm with the HDD cage still there?

Any help would be greatly appreciated, I don't want to order time blind and them not end up working out.