Congratulation!
Finally I found a way; Actually, It was not as hard as I was thinking!
Ultimatelly, I got the point, after I prepared the table Include of GM Pitch Banks and corresponded Technics KN 1000 ones. The table gave me a good Idea,
Using sonar X1, when we import Technics KN 1000 instrument by using Edit/performance/Instruments/define/import
We are able to import 3 .ins file
1-      Technics_KN1000 Bank Select.ins
2-      Technics_KN1000 full Map.ins
3-      Technics_KN 1000 Drums.ins
After we import all the 3 files into instrument definition, we should assign the channels to the appropriate Instrument. we must assign Channel 10 to Technics_KN 1000 Drums and for other channels  we can choose two methods:
1)      Assign the Other channels to Technics_KN1000 full Map.
We have to  come back to Track view and change the chosen Track Bank to Technics_KN1000 full Map in The first combo box in Inspector window. In the second combo box we should choose “Blank”.Then by using the above mentioned prepared table (the link is as fallow) we can change the pitches in third combo box to corresponded pitch in Technics. We must repeat the process for all the tracks. For channel 10 (drum Chanel) we must use Drum Map Manager to define the compatible drums with GM drums.
http://www.4shared.com/file/8NyYv8_h/Technics_KN1000_Bank_Select.html
Now when we play back the Midi file through Technics KN 1000, we have the closest sounds to original Midi. We should note that the pitches have been change to Technics KN 1000 song format, Thus In order to keep the original Midi file we can save the midi file in our private folder.
2)      Assign the Other channels to Technics_KN1000 select Bank.
In this option we can Assign GM pitches just to 8 ”user banks” which is define by user in Technics KN 1000 Keyboard .The advantage of the method is that we can define a desire sound in the “user bank” and easily assign it to the Midi track in Sonar. Also, when we are going to play keyboard in real time, we can assign the “user bank” to tracks, which are supported by VSTi, such as TTS-1.  And can enjoy of our performance with great sounds.
 
I should say Thanks to Jeff Evans and brundlefly who advised me and their advices caused to create the Idea in my mind,
 
So I can keep my Keyboard and no need to change it.
 
At the end, I would like to add that, it was my idea and May not be the best solution. I would like to ask from every ones who read the post, to leave his comment if he/she has a better Idea.
 
Regards,
Ramtin