If the search feature worked more reliably you could find good instructions right here on TDR, I just used info from here when doing head gaskets.
Some main things to keep in mind:
Rent a cherry picker, a complete 24V head weighs 176 lbs.
Thoroughly clean all the head bolt holes out with q-tips & solvent, compressed air, etc.
Thoroughly clean block deck finishing up with razor blades
Keep valve train components in order so they go back in their same spots
When reinstalling the push rods be certain they drop into their lifter sockets, they're easy to "miss"
Check the head for warpage, 12V heads always warp enough to need resurfacing, 24V heads are not as warp prone
If you have the head machined to true it up be sure to have a fine finish put on it
Pull the injectors before lifting the head
Sometimes folks reuse head bolts but I would get new ones
Basically the process involves:
Disconnecting batteries
Draining at least half of radiator
Removing intake piping
Remove throttle sensor (APPS)
Disconnecting fuel injection lines. . . take them off as a bundle, don't separate them
Remove valve cover
Remove injectors
Disconnect fuel lines at fuel filter unit, remove filter unit
Disconnect intake air temp sensor and MAP sensor wire
Remove rocker pedestals, push rods
Loosen head bolts in reverse order of torque sequence
Lift head off
Clean, prep, replace gasket, reassemble in reverse order.
Head torque procedure for 24V Cummins :
http://www.enterpriseengine.com/product/24vc-r-torque-specs/
That's most of it, anyone else have suggestions for SAndreasen or anything I missed?