Need an advice

FearFactory_17

*Hi guys! I checked my job desc (599915) in ANZSCO and no state is open under SOL, but there is one state (SA) that's open under CSOL. *Recently I got a positive result with Vetasses (4.3 yrs of exp)
*Few questions here:
-Am I right that Vetasses' PTA is not official and it's still the DIBP that will give me the NEEDED POINTS as per my experience? (I am hoping that DIBP would consider the 2 yrs of exp that Vetasses' did not include)
-I checked the website of SA migration, and they are requiring 80 pts for the job listed in CSOL (which happened to be my job). Are they really very particular on this 80 pts? as in if you wont meet this HIGH POINTS, chances are -they wont invite you at all or result will be negative for the EOI?
*For now I got 60 pts for the Subclass 190 visa: -Age, 25 -English, 10 -B degree, 15 -Work Exp, 10 (I only assumed this)
*I'm planning to repeat PTE exam and get 20pts
*not sure if SA will accept 70 pts if ever
*what can u advice?

Thank you