You're gonna want 3" radiator hose or silicone hose. You can force it through the space.

Personally i'd get polished aluminum from the front of the engine cover and then attach it to silicone hose that runs past the radiator.

I just with help from a couple members on the board, have pieced together my own custom duel CAI. You should be able to find any pieces you need on these sites.

Intercooler Pipe Fabrication - Silicone Intake Systems Auto Parts
Max-Redline.com - Auto Parts, Turbocharge, Intercoolers and Kits, Exhaust Manifold, Wastegate, Car and Truck Parts and Accessories

As for angled tubes to get past the radiator, right now i have a 4" long pipe connected to a 22 degree bend pipe which will hook up to a hose you will run past the radiator.