Just an FYI on some extra insurance for resealing your headlights. I recently completed my BHLM and all went really well.
After reheating the halves and putting them back together, I used a quality grade silicone sealant, and ran a bead around the seams. Not being good enough for me, I searched at Lowe's and found some Shurtape - Waterproofing Repair Tape. It is sticky as hell and gives a permanent waterproof seal. The foil backing can be painted, but with it not visible when the hood is down, who cares?
Although this may not be needed, the $8 insurance was a good find.