Rob Boddy's penalty four minutes into extra-time gave Mussels a 1-0 win over division-lower Crawley Down, and Donnelly said: "It was tough and we made hard work of it at times. "We started to get frustrated and began rushing things. "Crawley Down worked hard and kept going and we knew it would be a tough match, because they won here at Three Bridges earlier in the competition. And they always looked dangerous from set-pieces. "We lost our discipline again, like we did at Hailsham and that's something we'll clamp down on. "Mark Burt was tremendous and pulled us together. His experience told, and so too did Darren Annis' when he came on. On the final, Donnelly said: "We'll all look forward to it. But Ringmer are a quality side and will start as favourites." Shoreham defender Dan Jordan added: "It was tough out there, and hard work. "I played in the final two years ago, and will look forward to this year's one. It would be nice to win it again." Mussels completed the league double over Ringmer this season with a 1-0 win away and 2-0 victory at home. Progress to the final - Shoreham: 1st round, Pease Pottage (a) 13-0. 2nd round, Rustington (a) 3-3 aet; replay (H) 4-0. 3rd round, Chichester (H) 2-1. Quarter-final, Oakwood (a) 4-2. Semi-final: Crawley Down (Three Bridges) 1-0 aet. Ringmer's route to the final: 2nd round, Wick (H) 2-1 3rd round: St Francis (H) 2-1 aet. Quarter-final: Hassocks (a) 1-0. Semi-final: East Grinstead (Three Bridges) 3-0. Click here for Shoreham v Crawley Down match report.