I recently purchased a damaged OEM lamp to practice disassembly on for my HID retrofit project.
The lamp is one of the easiest to take apart assemblies I have ever worked with. 200 degrees in the oven for less than 3 minutes and I was able to take the lens off by hand. The sealant also stays tacky enough that it will seal up with minimal heat and pressure when it's time to go back together.
I have pictures to share that I will upload tomorrow afternoon.
My retrofit will consist of a Retrofit Source H1 Mini Morimoto Bixenon kit with 5k bulbs, 35w ballasts, Panamera shrouds and white led halo rings.