I'd say go with some braided cables, some blue wire covers as well to go with the blue of your car, maybe fill in the words 3.8 fuel injected on your intake, and imo nothin looks nicer than a clean and organzied bay, doesnt have to be all that flashy.
Dom, dont know if that works on the V6, I would think the break fluid cap, windshield washer cap, and power steering cap fit on the V6.
Havent seen any metallic red or darker red looms, I would suggest painting to match.