you can retrofit projectors, there are a few threads around here on that, and you can't really make euro tails which is probably what you are talking about for the premade ones, you can take the orange pieces out of the tails and headlights and tint them but it could be illegal to do the tint and remove the orange reflectors
Mine have Acura TSX projectors and Audi led light strips. To fit the projector I popped the refractor out and cut off the entire low beam side, sanded what was left on low-beam side (can't cut it exact because of aiming hardware), and sprayed it black. It'* not hard to do but can be a bit of a PITA. When its done though let me tell ya, it stands out. Just the headlights give the front end a pretty BA look.
When you have it apart you take the black frame part out and the amber will pop right out. It'* held in by three tabs. As for the projectors they don't just sit inside. Mine are held in by three longs bolts through the back of the housing.