They are only the second team ever from the division to reach the final after beating Aston Villa 4-3 over the semi final, following wins over Arsenal and Wigan previously.
“This is dreamland, hopefully we will have a great following at Wembley and do the club proud,” goalkeeper Matt Duke told Sky Sports.
“I am not convinced it will ever sink in. You dream of this as a kid, playing at Wembley, and like I say I just want to do the club proud.”