Today the court heard from Allan Clarke, a viticulture expert who examined the plots Lundy was interested in.
He said the costs for setting up the 44ha land as a vineyard would have been about $32,000 per hectare, plus infrastructure costs that would have included roads, sheds and power.
"At that time that would have been quite a large corporate vineyard."
Lawyer Phillip Sunderland worked for Lundy in setting up his company Wine Growers and giving advise on how to legally seek investors for the property.
He said he warned Lundy about the dangers of an unconditional agreement on the land without having guaranteed investment in place.
It would have been a "robust" conversation, he said.
Business advisor and friend David Gaynor said between eight weeks and three weeks before Mrs Lundy's death, he warned her about the risks to her and her husband's kitchen sink distribution company, Marchris, should the vineyard venture fail.
"I said the project was a very big risk."
He believed Marchris did not have the funds to put the deal together, and he urged her to tell her husband of his concerns.
The court also heard evidence from office administrator Victoria Jack, for accounting firm McKenzie McPhail, who said the company did some work for Lundy, but he failed to pay any invoices.
The final invoice of $11,219.36 was eventually written off, she said.