About the lower radiator hose
My lower radiator hose was almost burned through when I pulled my setup apart, and a new one from the dealership cost me 60$, but it is a really nice silicone piece. My solution was to wrap the hose with heat-sheilding aluminum coated fiberglass, hopefully this works. If you look, the downpipe runs about 6cm away from the radiator hose just below the water neck. The stock hose is about 3 layers thick, and after 36k miles, only one layer had begun to bubble, but better safe than sorry, and 60$ is cheap insurance in comparison to being broken down next to I-5. If you are actually going to argue, yes, the hose will never actually burn through, because the water will always keep the temperature down enough to prevent that, but the heat will accelerate the aging of the silicone.
I am a fortified smiley
(peep)