Spurs have been operating on more or less a zero net spend for 6-7 years - long before construction of the stadium started. My guess is that that will continue this summer. So Levy is being perfectly straight when he claims that the stadium will not effect Spurs' transfer spend.
For what it's worth, I'm no fan of FFP and was sorry to see Spurs among those who supported it. But I don't see how the decision has "backfired", exactly. Spurs are no worse off as a consequence.
As to Walker, I'm sorry to see him go. Popular player. Incredible athlete. Has a few weaknesses in his game yet still the best right back in the PL last season. But unfortunately, for whatever reason, he fell out with Poch last season and there was no coming back from that. Good luck to him. He'll get a great reception back at the Lane......err Wembley!