David Beckham's decision to quit LA Galaxy has sparked interest globally in the 37-year-old midfielder, leaving A-League clubs to hope the former England star genuinely wants "one last adventure" over a final large payday.

Half the competition's clubs had submitted bids by Tuesday night to Beckham's management team or were in the final stages of doing so, pitching the lifestyle angle in the face of anticipated mega-deals from China and the Middle East.

Perth are understood to have made the highest offer, while the Mariners have made what chairman Peter Turnbull dubbed a "more than football endeavour" to boost the entire Central Coast.

It remains to be seen whether Western Sydney Wanderers will be able to put a bid together.

Football Federation Australia sources say the governing body, as the Wanderers sole shareholder, would not be able to fund a bid for Beckham itself, meaning the money would have to come from third parties.

Beckham's announcement on Tuesday that the MLS final on December 1 would be his last game for Galaxy brought instant extra credibility to efforts to lure him here, though his aim of finding "one last adventure" has also raised the question of whether a 10-game guest stint would match that.

As things stand, any of the A-League clubs could sign Beckham on that basis but only the Mariners and Wellington Phoenix could offer a longer term deal as they do not have the one permitted foreign marquee signing.

The A-League clubs submitting offers are confident that theirs will be serious propositions for Beckham, with Football Federation Australia understood to be willing to contribute some of its marketing budget to a deal.

The Mariners have garnered a coalition of local interests, believed to include state and federal governments, local councils, tourism bodies and, of course, John Singleton.

The millionaire adman has made available his palatial John Singleton's Bells Beachhouse in Killcare, which normally costs up to $2500 per night to rent, but is also prepared to shuttle Beckham to training and matches by helicopter if he prefers to live in Sydney.

"Our approach is similar to our club, it's a whole of community affair," said Mariners chairman Peter Turnbull.

"We've got a lot of regional support, Singo and other groups ready to join in.

"We're not doing it as a purely football endeavour - the region has its own problems and we believe the whole of the Central Coast could be uplifted by David Beckham.

"He's always said how much he enjoyed his trips to Australia, and we'd offer him the chance to live a truly Australian lifestyle for three months."

The clubs have all been told to submit bids totalling what they think Beckham is worth.

The initial figure quoted was around $1m for 10 games, though there have been suggestions in the last day that it could be double that.