Thanks!
I just used Permatex black silicone adhesive sealant. After some research, it seemed to be an ok solution. I've used it before and it seals well and softens up at about 200F degrees, so should be easier to remove than the stock adhesive. The project has been done since Friday, but I've been waiting for decent weather to get the car out and snap some pics. It's been cold, cloudy, and rainy for days
Here are some in the garage pics, but the lighting is bad. Loving the new headlights! They are a huge improvement over stock

Please ignore the bug spatter and messy garage...been too cold for a wash