Well if you ever hit a large animal you wouldn't have any problems with blood stains inside or out! lol Sorry, bad joke I know...
Yeah I agree with the others that red/red would be too much of one color. Red/cream is always a nice choice, or red/black. Red on saddle I'd have to see in person - I think the shades of each might not compliment each other as much as say a classic Ferrari red. Sparkling graphite or Alpine white are the two best colors with the Coral red IMO