Gainsborough Trinity chairman Peter Swann says the club have surpassed their own expectations by reaching the Blue Square Bet North play-off final.
Trinity beat FC Halifax 3-2 over two legs in the semi-final and victory over Nuneaton Town on Sunday will take them into the Blue Square Bet Premier.
Swann told Radio Lincolnshire: "We have surprised ourselves and everybody else.
"The plans were to perhaps flirt with the play-offs and probably not get to this stage."
But Swann, who is hoping for a crowd of around 3,500 at the Northolme, added: "We will try to take this chance on Sunday and I will not moan about it."