Dear Sajid Ahmed,
I would advice you to go for a 1kz 3.0 prado . because alternation like replacing 2.4 with 1kz and dash board panels etc.. would not perfectly be strong unless you find a good mechanic. its upto you.
yeh 1kz Engine are available in Quetta and are demanded engines these days. so finding a good one needs a good expert too.
I myself dont know much abt these offroading materials and also about the Quetta market abt it.
but the things you mentiond are available in quetta.
so If you thinking to buy brand new stuff than i guess quetta is not the right place.
and for purchasing these items you need to acompany an expert , esle market will rip your pocket
I have seen Prado's surf with these stuff on it.. but are rare.
Most of these things are brought from Chaman .
At the End i Would say you need to approach a person who knows everything clear abt quetta's market offroading