Here’s a tip for anyone assembling a car. Install this hose before you install the RF wheel and lower wing valence. I found it’s a lot easier doing it from under the wing. Probably how the factory guy did it.
Also I found for installing the side closure panels in front of the radiator, I left the radiator angle clamping rods off so I could tilt the radiator back a bit.
The thread of the drain valve is 1/4 BSPP. Someone had crammed in a 1/4 NPT valve, but fortunately it didn’t ruin the threads and I was able to clean them out with a wire brush and install the right valve.