Thank you for replies,
I am told that there's now auto-gearbox which is bolt-on fitting, made for this same engine model, so there are no major components modifications needed. Just replacing the gearbox, adding gear computer, and removing of clutch pedal. How much it is true, I am asking here to confirm 
I am looking here for someone who have done it, or know someone who have done it, and share the experience.
Of course, mechanics and parts seller always say, yes its perfect fitting etc. to make a sale, but in reality its totally different.