@smijaz
Yes Sir, I have followed @drtanveerali thread on Pakwheels & installed almost similar A/C setup in my Khyber from Bashir Autos & A/C, Tariq Road, Karachi (with all parts new except Toyota Duet Compressor & Inner coil of Toyota Vitz)
Sure, i will share installation pictures of the Carburettor area as well as Firewall.
BTW in which city, are you located Sir & do you still have Khyber with you?