It should be practically possible to replace the touch screen with the non touch version on your device. However, please check whether there are any other hardware that has been designed to work with touch screen alone. In such cases, it may not be an advisable idea to replace it.
The best trick in such a situation would be to refurbish your laptop. Get it done through a reputed computer service centre. That would in fact be a better alternative than opting for a non touch screen.