THE partner of missing man Jason Richards wants to use a psychic to help find the 28-year-old glazier.

Jessie Laidlaw said yesterday she was baffled at police reports that a truck driver saw Mr Richards behaving erratically and speaking incoherently almost two weeks ago south of Pimba.

Mr Richards last made contact with his family on June 20 while driving from Darwin to Ballarat.

Police declared his disappearance a major crime but now believe he may not have met with foul play.

Ms Laidlaw told the Sunday Mail she was hoping to enlist television psychic Deborah Malone.

"I truly believe that she can solve crimes and she knows what she's on about," she said. "For him to be that disoriented makes no sense to me.

"He'd travelled that road many times, he's not silly."

Ms Laidlaw said Mr Richards had no history of mental illness, and had prepared himself well for the trip.

He was on his way home after working in Darwin for three months.

"I'm not saying our life was perfect, every relationship has its ups and downs, but he wouldn't not come home," she said.

Ms Laidlaw, 24, said she still had not told the couple's two children - Monique, 5, and Jack, 3 - about Mr Richards' disappearance.

"They were so excited when I told them he was coming back,'' she said. ``I just don't want to tell them anything unless it's confirmed.''

The mining town of Roxby Downs was yesterday bringing together offers of beds, food and fuel for eight Ballarat men who drove through to SA's Far North to help with the search.

Mr Richards' brother David was among the search group that stayed at Pimba on Friday night.

His colleague and friend Hamlyn Plant left Ballarat on Friday and drove through the night to get to Pimba yesterday morning.

"I know for a fact, if I was in Jase's shoes he'd be out looking for me,'' Mr Plant said. "It's not like him to just disappear like that.''

Ms Laidlaw said she was blown away by the offers of help from her friends and family and the strangers across Australia who were helping.

"I can't explain how much it means to me,'' she said. "I've never known so many people who want to do everything to help, it's amazing.''

Roxby Downs mine co-ordinator Cath Denholm filled the Ballarat searchers' cars with fuel when they arrived in town yesterday morning, where they met with police.

"If it was me sitting at home waiting for my husband to turn up after three months, it'd be heart-breaking,'' Mrs Denholm said.

"I said to my husband, 'If it was you or someone else we know, we'd need people to help us'.''

Mr Richards left Darwin for Ballarat on June 20, and his last contact with his family was a text message to his sister he sent from near Coober Pedy later that day.

Police confirmed the truck driver's sighting of Mr Richards between 10 and 20km south of Pimba on June 21, and said another driver saw his car driving erratically.

The boat he bought in Darwin at an informal roadside car yard was found burnt out near Pimba on June 24.

Mr Richards was driving a navy blue 1991 Nissan HiLux ute with two dog cages on the tray with Victorian registration plate ODV747.

He had his pointer-cross dog Amy with him.

He is Caucasian, of slim build and about 178cm tall. He has short brown hair, a light-brown complexion and brown eyes. He has a tattoo on the left side of his neck that says 'Jack' and another on his lower arm that says 'Monique'.

Anyone with any information should contact BankSA Crime Stoppers on 1800 333 000 or at www.sa.crimestoppers.com.au.

watkinsem@sundaymail.com.au