Well, i have a 60A esc from Hobbypartz. It is the exceed rc one with the bec built in. Retail is $28. I've used mine in 2 flights and ill sell it for $17 shipped. http://www.hobbypartz.com/volcano-series-60a-brushless-esc.html
Id be glad to fix your esc problem by selling you my 60 esc for a insanly good price! lol. Im still confused why you cant fix the blade tracking by adjusting linkages?