If I want to use an approximate 420x140x45mm radiator on the front panel, what is the clearance from the bottom of said radiator after it is installed to the bottom of the case? I am asking because the specific radiator I want to use has a drain port on the bottom. I would like to know if there is clearance to attach fittings on the bottom to function as a drain. If not, I may go with a cross-flow radiator so I can get a port all the way at the bottom.