EOI for South Australia


I have total 65 points excluding state points. I wanted to apply 190 South Australia visa. Due to age factor I scored low.
I’m in medicine research field and applying for research and development manager code.
Me and my wife both are working in Adelaide since last year. My wife is in clinical research field. I’m not claiming her points for this visa. As it may take more time to do assessment and English exam. But I heard that SA considering onshore application. So just wanted to know is their any chances to get invitation with 65 points and including state points 70?