Dis-assembly isn't "hard" but IS time consuming. I bought a second set of headlights so I could bake them apart and mess around without handicapping my truck. The set I bought actually someone else tried to open and cracked the lens, bought that set for cheap and on purpose so I could **** it up even more while learning, and still having a perfect set on the truck
I baked them for 10 minutes a pop @ 200F and did it roughly 5-6 times each headlight, SLOW STEADY pressure on the edge of the lense will slowly lift and separate the permaseal, rush it and you will crack something, slow and steady wins the race here.
Projectors and such were all myself, I did a little bit of dremel modding (second time using a dremel so a little rough but it worked) but I sent the painted stuff to a buddy at a body shop. He took a few days longer than I wanted as he wasn't happy with something, but hey I aint complaining still haven't paid him and I think they look WAY better than what I could have done with a rattle can.
Painted w/ no projector;