These are the equipments that I require specifically . Even 2nd hand equipments may do.
Full Chasis kit
1) a) Rear drive shaft or dog bone (as they are called in the rc hobby)
b) Front dog bone
2) Front and rear disk brakes.
3) Centre bulkhead.
4) Fuel tank
5) Centre differential and spur gear.
6) a) Rear chassis brace
b) Front chassis brace
7) Servo tray
Battery and receiver box
9) Rear shock tower. The shock tower has many different mounting holes for both the shock and camber link.
10) Rear camber link - turnbuckle (adjustable)
11) Rear hub carrier.
12) Rear suspension arm.
13) Rear sway bar.
14) Rear CVDc shaft.
15) Rear hub.
16) Rear differential housing, differential and rear bulk head.
17) Rear springs.
18) Rear shocks
In this example we are going to look at the front suspension on an rc nitro buggy. This example is of a Pivot Ball or Pillow Ball type suspension.
19) Upper and lower pivot/pillow balls. They thread into both the upper and lower arms.
This gives you the ability to change camber.
20) Front CVD
21) Front lower suspension arm
22) Upper suspension arm - A-arm.
23) Front shock tower.
24) Front drive shaft or dog bone.
25) Steering knuckle.
26) Front hub.
27) Front sway bar.
28) Front differential, differential housing and bulkhead.

For Control
1. Receiver 2. Fail safe
3. Servo for carburetor and brakes
4. Servo for steering
5. Receiver batteries 6. On / off switch
6. Suspension System

For Engine
1.Carburetor
2.Glow plug
3. I.C. Engine

For Steering
1.Wheels
2. Differential
3.Caster
4.Toe

This is pretty much a RTR car that you want, so search on this forum for information about dealers and shops who sell cars, and contact them directly. 

Please do not expect people to send you a list of itemized prices for such items, that would be a waste of everyone's time.

Wish you luck with your RC endeavor

You need  a chassis for all of these.Have you decided on it yet?All these components are basically meant for a specific chassis or a specific group of models running with BASICALLY the same chassis.(ex.many parts from the HB D8 can fit on the Vorza Flux HP)

Also,you are not very sure about what you need.Without a good idea,you will be in a world of pain when you start building it.

it would be like making a jigsaw puzzle from different sets.
well i have the on off switch that i can send you.... pm me your address .

Are there any kits for chasis of particular  brand  available in market or can any one suggest me a guy who is ready to sell some disassembled parts..
the kind of chasis that I require is an hpi car model If I am not wrong...

I ve already found the person who is ready to sell the second hand car. So this topic can be closed by the admin. Thank you.