Here is my 722.3 valve body rebuild tutorial if anyone is interested at taking a stab at it. I have done a few of these already and it is shocking how much material gets built up in them!

https://www.youtube.com/watch?v=h9thWDLR5yo&t=1s

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1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge