Havant and Waterlooville could gain as much as £800,000 from their FA Cup fourth-round tie against Liverpool at Anfield.
The Conference side have set up a mouthwatering clash with Liverpool on January 26 after eliminating League One leaders Swansea in the shock result of the third round.
The underdogs put in a scintillating first-half performance, taking a 3-0 lead through Gary Monk's own goal plus strikes from skipper Jamie Collins and Rocky Baptiste before Guillem Bauza pulled one back.
Havant goalkeeper Kevin Scriven saved Leon Britton's penalty before the break but Jason Scotland made it 3-2 before Tom Jordan settled the tie.
Club secretary Trevor Brock expects the Hawks to use up their full ticket allocation for the lucrative Anfield clash.
He told Sky Sports News: "We're taking 6,000 tickets and we hope we can sell them.
"Looking at all the figures we could take half a million pounds plus £250-300,000 worth of add-ons."
Gale described the fourth-round tie against boyhood idols Liverpool as the stuff of dreams.
"It is unbelievable, dream stuff to reach the fourth round of the FA Cup," he said.
"I would not have believed this would have ever happened a couple of months ago but that's football."
He added: "We have turned the dream into reality. It is a fantastic result. I am just so pleased for everyone involved in this football club."
Gale felt Swansea had paid the price for underestimating a side 83 places below them in the football hierarchy. He said: "Swansea played their strongest side but they underestimated us.
"We worked on our set-pieces and they could not handle them. We could have folded after they got their second goal but we dug deep."
FA Cup fourth round draw
Arsenal vs Newcastle United; Coventry City (II) vs Millwall (III); Oldham Athletic (III) vs Huddersfield Town (III); Swindon Town (III) /Barnet (IV) vs Fulham /Bristol Rovers (III); Wigan Athletic vs Chelsea; Liverpool vs Havant & Waterlooville (ML); Southend United (III) vs Barnsley (II); Southampton (II) vs Bury (IV) Manchester United vs Tottenham Hotspur; Portsmouth vs Plymouth Argyle (II); Derby County /Sheffield Wednesday (II) vs Preston (II); Watford (II) vs Wolves (II); Peterborough United (IV) vs West Bromwich Albion (II); Sheffield United (II) vs Manchester City; Mansfield Town (IV) vs Middlesbrough; Hereford United (IV) vs Cardiff City (II).
Three remaining third round replays to be played on January 22. Fourth round ties to be played on weekend of January 26/27.