for cowboy - Bro following are the engine parts that were Japanese and fitted in my khyber's engine
Piston standard =1450
Rings Set standard= 1100
Valves= 1250
Main & Bigends 75mm= 950
Gaskit Complete=775
Timing Belt=275
Timing Belt Bearing=580
Clutch n Pressure Plate=3450
Clutch Bearing=800
Pilot Bearing=150
Oil Pump Assembly=3300
Spark Plugs=240
Thrust Washers .25mm=175
headbolt Bushing=200
Manifold Welding=100
Rocker Shafts 2=800
Radiator Service=280
Then the kharadya cost
Cylinder Sleeve New Fitting= 700
Crank Shaft Grinding= 300
Main Line Setting= 200
Rod Grinding=150
Piston Pin Press=100
Headvalve fitting=350
Headcam Bush/ Cam grinding=600
Total spent on Engine=27k
(i have not included the parts which are of general maintainence like gear oil, engine oil, silicone, air filter etc etc)
Hope it helpssss