Tuesday is D-day for debt-ridden Dunfermline as preferred bidders Pars United, the fans' group seeking to exit the club from administration, find out whether their bid is successful when creditors meet at East End Park.

Creditors amounting to at least 75 per cent of the club's total debt must accept Pars United's pence-in-the-pound offer to pass a Company Voluntary Arrangement (CVA) which will secure the club's future.

Bryan Jackson, of Dunfermline's administrators BDO, says the club are almost certain to be liquidated if a successful CVA is not achieved at that meeting.

Jim Leishman won the First and Second Division titles with Dunfermline, led them to the League Cup final of 2006 and completed a fabled 'great escape' from relegation as manager in the 2005/06 SPL campaign. However, he feels the gravity of the current situation facing the 125-year-old club puts those successes in perspective.

"I've been through the highs and the lows here, and this has been the hardest time the club has ever experienced," said Leishman, who is spearheading the Pars United movement alongside local business figure Bob Garmory.

"Everybody has worked to get to this stage. Fans have had sponsored walks, race nights, bucket collections and the club shop has made £10,000. Donations to Pars United are at over £110,000, it is terrific. That has kept us going.

"But we have to remember, even if Pars United are successful on Tuesday, the hard work is only beginning. Fans will have to keep digging deep – it always seems to fall on them – with the running costs to be met. However, we are determined to put in place the foundation of something sustainable."

East End Park Ltd (EEP Ltd), a separate company which owns East End Park, are by far the club's largest creditor and are also in administration.

The voting rights of EEP Ltd are held by their administrators, KPMG, and they are expected to accept the Pars United deal.

HMRC are likely to reject the CVA proposal out of principle, believing it is unfair that business creditors will only receive a tiny portion of their debts while football creditors must be paid in full.

However, it is thought that HMRC only make up around two per cent of the club's estimated £8.5m debt.Previous majority shareholder Gavin Masterton holds a substantial amount of the debt, although it is unclear whether he possesses the 25 per cent which could block a CVA.

Dunfermline last published audited accounts in May 2011 and it is understood that even administrators BDO are unsure exactly how much debt each creditor holds, making the outcome of Tuesday's meeting extremely hard to gauge.

With a nervous 48 hours ahead, Leishman is hopeful that all creditors accept the offer, with Dunfermline's survival on the line.

"I'm sure the creditors will do the right thing," continued Leishman who, in the last set of accounts, was himself owed over £20,000.

"People I speak to all want this club to survive. I would hope that anyone who has lent Dunfermline in the past would not want to see this club liquidated. It's about starting again."