Do you have a frame? If you want to restore than buy cd185...... its cheaper than cd200.... the frame is the same.....just have a smaller engine...... CD200 parts are compatible with cd185.... that is not the case with cd175......
You wont be able source parts for cd175 locally...cd175 was in production for 12 years whereas cd200 was in production for 21 years.... dubai ka buhat spare ata hai ranchore-line per cd-200 ka......... cd175 ki resale isi liye tow kam hai... no spares in market.... piston ke rings tak tow milte nahi hai...... engine kahan say banay ga.
For a restoration project....look for a cd185 or cd200........ if you are thinking of modification......look for a cd175.......dead cd175 will cost you arround 15k....... dead cd200 atleast 30k....maybe more.