Check these out for the front. I'm just bringing them to market for the Challenger and Chargers. I'm doing the 68 and 69 Chargers right now. 72-73 Cudas are after this.

http://www.youtube.com/watch?v=nactAwM4Wtw

As far as your side marker lights, they should be a 168 bulb and are available at your local truck stop for $7.99 for a pair.

As far as the tail lights go - I'm using Larry's stuff from Northwest Mustang. Great guy and his boards are nicely done.