DaveMac said:I'd consider turning the rad around if you can, so the bleed valve is easily accessible through the bay covers. The tubing should fit through the holes on the PSU shelf.
On your layout pic I'd run res>pump>CPU>rad>res to reduce the tubing lengths.
I can get to the rad bleed screw from where it is through the PSU mount hole.
See the links in my sig.

i spent hours turning my pc upsideown to bleed the rad 
Oh well, i know how to bleed the beast properly next time 
