@Imranwazir,
Before buying any thing specially ‘Ride” one needs to see his requirements and Budget. Surf & Double cable are totally 2 different choices. For your requirement as U mentioned U need a 4X4 mostly for city and occasionally for off-raod, plus the options offered/available in SSR-G grade are not available SSR Double cabin. For Example:
Hard Shock Option
Idle UP
Diff Lock
LSD (Limited Slip Differential is Optional)
Less Ground Clearance as compare to Surf
No Alloy Wheels
And according to your budget best option will be Surf SSR-G (with Intercooler) 1996/1998. If U opt to get Double cabin 1999/2000 then U need to increase your budget.
Regarding Surf as I have personal experience & in my opinion Surf is “Sports Ride” and a great vehicle to drive within the city and off-orad as well. Thought I just got Parado as a replacement to my Surf but I think soon I will be going back to Surf as I miss my sports ride.
I am placing Specifications for Surf SSR-G 1997 and Double Cab SSR 1997 for comparison and you can then decide what to choose.
Surf SSR-G 1997


Double Cabin SSR 1997


If U need any further info about Surf, feel free to ask.