Sandra Campbell and her husband Chris milk about 500 cows on their 300ha farm Oakwood Hills in Clifton, about 20km west of Balclutha.
To improve the biodiversity, they established a nursery and collect seeds to grow thousands of native plants.
Steep gullies have been fenced for riparian planting to better manage stock, provide shelter, protect waterways and support wildlife habitat.
The sale of a 1973 Bedford J1 in Christchurch sparked an idea of how the truck could help them share their story and skills with the wider community, Mrs Campbell said.
The truck was named Beryl the Bedford and a PledgeMe campaign had been launched to raise most of the money to buy it.
Mrs Campbell said they would pay the remainder.
The plan was to drive Beryl, loaded with native seed and plants to sell, to community events in the lower South Island.
Beryl would help them tell their story, engage with the community and provide information and advice to give people the confidence to give it a go.
Another reason for buying Beryl was the opportunity to have fun.
"We’re living in serious times, so the whole point is just to have fun with it.
"You can’t be too serious about buying a Bedford truck with trees on it."
There would be a celebration when Beryl moves to the South, she said.
"We’re having a party for Beryl as well.
"So, it’s just ridiculous.The whole thing is ridiculous, but it’s enjoyable.
The fundraiser closes on May 8.
