I wouldn't go to 30M myself, but low 20's + Quags or 20M upfront and 5M in bonuses should be enough. I'm pretty certain if he's our plan A then plan B involves us buying a mediocre, past it player who will undoubtedly flop which means we'll end up reverting back to 3-5-2 because yet again we don't have the players for anything else
Of course plan C is just as bad, sell a key player to fund the Summer market and end up possibly weakening our team significantly.