is grindhouse version of italian cut possible at some point?
As thxita said, the Italian cut is the same as the US theatrical (I know, I watched them side by side). Now what exactly do you want? Just a raw scan of the Italian version with Italian voices and titles and computer screens? Poita has already released this.
Something in English? I have done a version where I synced an English track to the raw scan and replaced the titles. That’s in the link above.