No need to come to Lahore to buy this item.
Even in the junk yards, every one is having smart phones and using whatsapp. Share the details of required picture, model, etc. they will find and share the photos/videos with you on whatsapp and if ok they will send it by bus to Sialkot.
I know many many people in bilal ganj but they mostly deal in Toyota’s parts. But I guess everybody can help for Suzuki parts too.
Let me share you some numbers you can contact with
Naveed 0302-4607600/0315-4607600
Shehbaz 0323-2988880/0322-4496680
Abbas 0322-8632088
Zahid Akhtar 0331-4392160/0315-4392160
Guddu 0321-4881801
I have many more contacts, but I hope your issue can be solved by one of them for sure all depending on your communication skills.