Hi Matt,
I purchased way too much EXO V4. I don't have the sunroof and applied one coat of CSL. I bought two 30ml bottles of CSL. It took one full and about a 1/3rd of the second one. So, one 50ml bottle of CSL would have been perfect (and would be enough to do the door jams and wheels). After the CSL is applied, the EXO takes even less. I used one 30ml bottle to apply two coats of EXO. I opened the second bottle to do two coats on the door jams and wheels.
So... if you got one 50ml bottle of CSL and one 50ml bottle of EXO, you'd have enough to do the job. Gtechniq sells a kit on their website that includes this, plus their panel wipe for $150.