OK! Got the valve adjustment completed. As "they" say, it was the proverbial "piece of cake". Easy to build things up in your mind, making them seem more difficult than they really are. It was much easier to rotate the engine than I thought it would be. All valve clearances were "tight", save for one intake. No problems with the adjusting nuts and locking nuts. Buttoned it all up and went for the requisite "test drive". The engine started better than it EVER has (have only had the car a few months). Seemed to have a bit more power on acceleration and the engine ran smoother, too. However....the engine seems to make an awful lot of racket when at idle (always has). Maybe sounds "normal" for these cars? I'll try and upload a video of it idling and get a few opinions here.
Next on my list is the famous, and controversial, "Diesel Purge"! That procedure, along with new filters and strainer might quiet things down a bit, yes?
As always, thanks for the help and advice. Glad the "Pelican" is here to lean on....lol