6.0 bulletproof

So I have a 2006 f250 6.0 truck. It currently has a bulletproof egr and oil cooler. But as I've seen quite frequently in other forums and chats is that I, like many, have the egr unplugged and not functional. The truck also has a 12 inch lift sitting on 40s. She runs like a champ but i have recently installed a sct x4 tuner on the truck running the canned tunes.

My question though is for anyone with a lifted truck or if any diesel mechanics knows if it is more expensive to do head gaskets or head studs on a lifted truck. I know there is two ways that being a cab off or pulling the engine out of the truck. Which concerns me due to the fact that I don't know how much more room there is going to be left for someone to work if they pull the cab off my truck. So if any one knows if a lifted truck is more expensive to work on in the engine bay please let me know and if you know the average price that would be awesome.