Yes, I agree with you about the whole setup with 6...b6, because also "Polgar-Smirin, 2000" doesnīt look very promising for Black.
At the moment I think about following the setup/game:
-> Pavasovic-Mrkonjic, 2010
1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 0-0 6.Be3 c6 7.h3!? and then switching to
-> Pavasovic-Graf, 2005: 7...Qa5 8.Bd3 Nbd7 9.0-0 e5 10.Qe1 exd4 11.Bxd4.
This looks playable for Black also I fear to get cramped on the kingside with f4-f5, g4-g5 at the right moment.
I have to think about a concept for Black how I can face this plan of White and getting counterplay.
I think in the game -> Pavasovic-Graf, 2005 11...Re8 was a little fault and the direct 11...Nc5 is more accurate. The main difference is that after 11...Nc5 the pawn on f7 is overprotected after 12.Qf2, so that after 12.Nxd3 cxd3 the threat e4-e5 isnīt such a problem like in the game.