No offense, but you'd have to be a complete moron to ruin your headlights. It's an extremely simple operation if done with a good heat gun and a couple of screw drivers. On my old Accord, it took me about an hour to do the first one and about 15 mins to do the second one. I was really afraid I'd mess it up, but once I started doing it I realized how careless you'd have to be to end up screwing it up. As long as you put on tons of silicon at the end, you're in fine shape. Vinyl stickers look tacky as hell IMO, same with most eyelids.