only tip would be it is quite common when removing the long heavy head on the big six when swinging it up and out of the engine compartment....is to catch the plastic timing chain guide located on the driver side front of the block. This generally will break the guide resulting in a need to disassemble the front of the engine, remove the crank nut and lower timing chain cover. Makes a big job even bigger. A good idea is to make a list of do's and don'ts and tape them to the hood for reference when doing the head gasket as to not make any big mistakes. I really should put together a list but just haven't had the time. Also a fellow enthusiast and now a friend botched the job the first time and didn't set the cam timing correctly resulting in a number of bent valves. He also did a lot of horrific things wrong when rebuilding the top end resulting in him having to do the job twice. I am happy to report that both he and the engine somehow made it through the ordeal and it is now running beautifully.
HTH,
George
One hugely important point whenever the engine is opened up is to be very careful with little clips, intake/exhaust copper nuts etc...do not drop anything down inside the engine. Sounds silly but can happen very easily and ruin your day and make the job a whole lot harder.
George