It might be possible to put forward a case that your son's strengths are on the maths/science/NVR side - but you will need a lot of evidence.
He has educational assessment which shows his problems which can be signs of dyslexia.
Was this done by an educational psychologist?
He is great in Non Verb (very high scores)
and high (don't know exactly yet)
It would be interesting to have the score for Quantitative Reasoning.
We also have an educational test done in our home language which shows his very high IQ (136). Will it help us and can we use this test?
You can use it, and the panel will have a duty to consider it, but I'm not sure whether it will carry any weight. It depends which test was used, who administered it, etc.