Need Songs for Rock Band

I'm the lead vocalist in a classic to modern rock cover band, and we want to move into the realm of original music. Think along the lines of AC/DC, Motley Crue, Airbourne, Judas Priest (but female fronted). We want really in your face, dirty rock. What we're looking for mostly, is the completed instrumental. Lyrics and melodies to go along would be great too, but I can write the lyrics and melodies if necessary. What we're hoping to get is a completed song as an instrumental (drum tracks don't necessarily need to be included)