Intriguing project! - I think that this could be a difficult challenge.  In the Najdorf there are main lines for very good reasons, backed up by large samples of games.

Therefore cutting back on the theory will, I presume, be only relatively speaking.  Have had a think about what lines could be recommended and some lines are easier than others!  For instance 6 Be2 could be a problem, but maybe it is possible to be creative against particular lines.  For instance the Shirov solution to the Karpov system that Arizmendi and Moreno could be used.

I thought that A+M wrote an excellent book and provided an excellent repertoire.  My view of 'The Sharpest Sicilian' is that I wish they had put in all the minor Poisoned Pawn lines.  I still proudly possess a copy of Nunn's 1995 Bg5 book; and went through all the 'bad' lines.  I quickly discovered that if black doesn't know them then there are ample opportunites to go down in flames.

Ftacnik should be very interesting - have nothing more to say other than I cannot wait!

And all of this leaves Rizzitano - wonder what he has up his sleeve?

No reason it shouldn't be good - its an opening he's a played a lot (with ..e5) and he's still young/conscientious enough to do a thorough job on the books he does Might be interesting to see how long he can keep it up for  
(his output seems high as he basically writes full time.).

Wonderful!!

I hope this will be a book on the "real" Najdorf with -e5 pawn formation. Not with -e6. But it is one year away!