Dear greyperegrine bhai,
"The 1KZ-T is an early version of 1KZ-TE, 2982 cc, 4 cylinders, SOHC, 2 valve per cylinder turbo diesel engine. Bore is 96 mm and stroke is 103 mm, with a compression ratio of 21.2:1. Maximum output is 125 hp (93 kW) @ 3600 rpm and maximum torque is 29.3 kgf·m (287 N·m) @ 2000 rpm."
This engine is most probably very difficult to find as most of the engines in the Pindi market are 1KZ-TE. This engine cost around 1lac with all the accessories. Engine alone is priced at 65-75k.
If you try to run it with a simple fuel pump and no EFI it will give a very bad fuel economy and power will also be less than the rated 125hp.
Since you are planning this engine replacement for your Surf I suggest that you take it to the border and have the new surf 1KZT-E engine installed with all the EFI and stuff.
I have a CJ-7 with 2L-T and I have been thinking of replacing it with a 1KZ-T for a long long time.
If you opt for a non EFI 1KZ engine it will not be as powerful or fuel econimical as the EFI version