From there, it was relatively straightforward for Barber's side to restrict Crawley's attacks, despite the best efforts of the industrious Helsdown, who kept plugging away for a way back into the match for his side.
Crawley's Sam Lemon was forced off the pitch due to an injury as Helsdown continued to try and score a goal for Austin's side.
Unfortunately, that goal never came as the Dons managed the game well to seal a memorable win.
After the match, an ecstatic Barber shared his thoughts following a triumphant day out in Lancing for his side. He said:
"We knew the task we had ahead of us. I can't expect any more than what the boys gave out there.
“Every game has felt like a cup final this year but that... I've never felt anything like it, it was crazy!"
When asked about his side's performance in the game and the manner in which they were won it, Barber said:
"Tommy (Yeates), our keeper, was just pivotal. He made six, seven, eight one-on-one saves. Without that, you can't win games. You can't without good keepers.
“So, when we scored, we took the sting out of them and then we just dictated from there and it was our game to win."
His parting message to the fans who were loud and proud long after the final whistle was blown, was:
"This whole club, since the start in 2019, it has just been a family and whether we have got one or two teams, friends, family, partners and everyone else is just loud and always support the boys and create a great atmosphere at every game."