Besides the accessory attachment points, are all G3 timing covers compatible with each engine?

I have a 6.4 with the HD truck cover, which encompasses a high-mount PTO. I'm looking for a basic cover that still retains AC (lower driverside, power steering (mid-high driver side), and passenger side alternator. I think I found one but it only lists 5.7/6.1 vehicles up to 2010.