Headlight and taillight blackouts are illegal in almost all states now for on-road use. (Some states will let you slide with the slotted styles.) Also having the body shop smoke your factory lenses is illegal in most areas. The smoke style lights you can buy off Ebay and from other retailers are usually legal as long as they have a DOT number on them. Contact the seller before you buy them to make sure they are DOT approved. For more info on what's legal and what's not in your state, you should contact the State Police.
Just like with chrome, there's a fine line between good looks and gaudy. It's easy to overdo it when black spray paint is so cheap. I'd go for more of a "Nite" look than anything, or similar to the lightning with the painted grille. Some color in there would help things, like a pin stripe or some new emblems. I've never been a fan of black wheels myself, especially the spray painted kind, but to each his own. I know many others feel the same way about black wheels.
I can always find my truck in the mall parking lot from the bright windshield moulding. My rig has a set of black factory spoke steelies and a set of of the factory alloys. My truck also has the chrome front and rear bumbers and a DP cross bed UWS tool box. The steelies make it look tougher but the alloys according to my grandson make the truck look newer.
I have had a couple of lowered "road trucks" and did it more for the performance on back roads than the looks. On my two sb Fords I lowered the rear (shackles) but kept the front stock. With the addition of sway bars they became very good handling trucks. Both trucks look great. My current ride is still my hauler so its still stock.