Congrats on your ISF!
I've never seen or even heard of the red interior (don't think we get it here in the UK, even on the newer models).
As long as you are happy with it, that's all that counts dude.
Cars are a personal choice, but I personally think the red would work really nicely.
BMW did it with the Z4 and M3 (grey with red leather).
Look forward to seeing some more pictures.