Lights - Yes
Caliper Covers - No, not blue not at all, they look cheap. If you need to do something, go ahead and paint them, silver or black would look best, but if you want the accent you could go with blue.
Flaps - None looks best, but if you want them for protection I would go with plain.
Rhino Liner - Yes
DRW Member #124
2006 Suburban 2500 with 8.1L and 4.10s in the very very very early planning stages of being Duramax swapped
2006 LLY 3500 Dually, Stock except 4in exhaust - SOLD 8/15 with 454830 miles and still running strong.