I would say with you 2 day time restraint GO FOR IT and see if you can disable the button or at least see what caused the cave in, loose spring etc, etc, ....you cant make it worse but you could possibly fix it or get it to where you can at least use a pedal for your variations until you can get it to a service center...keep us posted & take more pics once you remove the board.

good luck

[This message has been edited by Dnj (edited 07-06-2008).]