It started out as two blokes with $130 each trying to buy, sell and swap as much as they could to raise money for the Cancer Council.
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But now Eric Andrews and Luke Banister have decided to take their idea, which has already raised $4,500, on the road in a quest to raise $10,000 for the charity.
Eric, who moved to Tamworth from Maitland 10 years ago, started participating in Maitland Relay for Life 20 years ago after losing his mum to cancer. Luke, from Thornton, has also lost family members to the disease and has done his part to raise money since.
But the pair wanted to do something a bit different this year.
"We're going through Do It for Cancer because you can do any sort of fundraiser," Eric said.
"We weren't going to do a trip but we did so well with the buy, sell swap challenge we thought we better take it on the road."
The pair will leave Hinton on March 21 and travel about 5,600 kilometres in three weeks, buying, selling and swapping along the way.
"Whoever's not driving will be on the phone selling," Eric said. "We'll also do markets and garage sales."
The duo will head up to Queensland first then down to Victoria.
They're doing it all in a 2003 Holden Rodeo they bought for $800 in October specifically for the trip.
"I'm a bit worried how it's going to go - it's a Holden and I'm a Ford fan," Eric said with a laugh.