Which Panhard bar? Under the axle or behind.
If its behind sometime the sway bar crashes into the panhard bar. Done it with Suspension Techniques and stock sway bars.
Camber depnds on which tires and pressures you are using. With Hoosiers it was as much as 4.0 degrees Neg Camber
Caster, AS MUCH AS YOU CAN GET. Tip the top back as far as possable and tighten up the lower tension rod as much as you can. It will bind the lower control arm so be aware of that and check clearance. A LOT is better than a little. That way when the car gets REALLY LOOSE you can let the wheel loose in your hands and it will snap straight. Make sure you know where straight is.
Thats how I like to have it setup, others are different. Im an old circle track guy, Loose is Fast.
Dan
77 IT7